NANTUCKET, MA— The Maria Mitchell Association’s (MMA’s) Nantucket Harbor water-quality monitoring buoy is now part of the Northeastern Regional Association of Coastal Ocean Observing Systems, known as NERACOOS. NERACOOS is one of eleven regional associations that make up the U.S. Integrated Ocean Observing System, or IOOS, NOAA’s national ocean-observing network for gathering and sharing ocean, coastal, and Great Lakes data. This connection means that real-time data from Nantucket Harbor are no longer held only within a local monitoring program. They are now available through the NERACOOS Mariners Dashboard, where scientists, resource managers, educators, mariners, and the public can view Nantucket Harbor conditions alongside other coastal observing sites from Long Island Sound through the Gulf of Maine. The monitoring buoy carries a suite of sensors that track changing conditions such as temperature, oxygen, acidity, nutrients, and underwater light. These measurements show what eelgrass, bay scallops, and other marine organisms are actually experiencing over time. “This is an important step because Nantucket Harbor is now part of a larger coastal observing system,” said Dr. Betsy Sherman, the Maria Mitchell Association’s Senior Marine Science Advisor. “Our data can be compared with data from other sites, used in regional analyses, and placed in a broader environmental context. We are not just looking at Nantucket Harbor in isolation.” The Nantucket Harbor buoy project has been supported by the Great Harbor Yacht Club Foundation, whose early investment helped make continuous water-quality monitoring in Nantucket Harbor possible. Additional support has been provided by the Remain Nantucket Fund at the Community Foundation for Nantucket, the Osceola Foundation, the Sociable Weaver Foundation, and through collaboration with the Town of Nantucket Harbormaster. The timing is especially relevant for coastal communities because NERACOOS is also leading the newly funded NSF Seafood Engine in New England, a regional effort focused on strengthening fisheries, aquaculture, seafood technology, and coastal economies. For an island community facing changes in water quality, habitat, fisheries, and climate, joining this regional network strengthens the scientific foundation for understanding and protecting Nantucket Harbor. The Maria Mitchell Association was founded in 1902 to preserve the legacy of Nantucket native astronomer, naturalist, librarian, and educator, Maria Mitchell. After she discovered a comet in 1847, Mitchell’s international fame led to many achievements and awards, including an appointment as the first professor of astronomy at Vassar College. Maria Mitchell believed in “learning by doing” and today that philosophy is reflected in the MMA’s mission statement, programs, research projects, and other activities. The Maria Mitchell Association operates two observatories, a natural science museum, an aquarium, a research center, and preserves the historic birthplace of Maria Mitchell. A wide variety of science and history-related programming is offered throughout the year for people of all ages.  ####

Finished. Finis. Completed. Done. Accomplished. The Mitchell House roofwalk is now done. Back to looking a bit more normal up on the ridgeline. But as I may have noted in the other post about the roofwalk, the one that was removed due to its condition and how it sat on the roof’s ridge was far from the original – or even a nineteenth century one. I am including an image from about 1908 or so in order for you to see the Mitchell House without a walk – even then. Now, an interesting fact is that I am able to date the undated photo because in the west image – where you see the open year – you can actually see the shadow of the Maria Mitchell Vestal Street Observatory – at the backside of the 1825 Kitchen. And given that shadow you also know its late afternoon since that side of the House, as noted, faces West. Another interesting feature is the long downspout – more like a side spout – that takes water from the front gutter, along the upper West façade of the House and across a window and then over the 1825 Kitchen roof where it terminated in a cistern – still in existence under the ground today. JNLF

NANTUCKET, MA— The Nantucket Maria Mitchell Association (MMA) is excited to announce the return of its Fourth Annual MMA Pop-Up Shopping Event, taking place July 13–15, 2026, at 33 Washington Street . The three-day event will bring together more than fifteen thoughtfully curated, female-founded brands for an elevated shopping experience, with 15% of vendor sales benefiting the Maria Mitchell Association's new Discovery Center & Aquarium Project. The annual pop-up has quickly become a summer tradition, offering island residents and visitors the opportunity to discover unique fashion, home décor, accessories, art, jewelry, gourmet foods, and lifestyle brands while supporting one of Nantucket's most beloved nonprofit organizations. This year’s vendors include Center & Spring, CJW, Classic & Curious Podcast with Anne Kokoskie, Dress More with Less, Haute Energy, Hibiscus Linens, Leigh Brown, Line in the Sand, Love All Tennis, Lulu Powers, Marfa Stance, MDVII, Michela Bruni Reichlin, Neelah Cashmere, The Preppy Stitch, Those Carls Girls, and Wendy Loves This. The event kicks off with an opening party on Monday, July 13, featuring the second annual Summer Games: Mahjong & Backgammon Tournament, presented by the Nantucket Mahjong Club . Guests will enjoy a late afternoon of friendly competition, shopping, Château Sainte Marguerite rosé, a Triple 8 cocktail by Tinker’s Bar , Caviar Nantucket , Shells Angels Raw Bar, Nantucket Nosh, and entertainment by DJ Garrett Justice . One hundred percent of tournament proceeds from the tournament will benefit the MMA Discovery Center & Aquarium Project. The shopping event will continue on Tuesday, July 14 and Wednesday, July 15 with fifteen percent of all vendor sales to benefit the Maria Mitchell Association's Discovery Center & Aquarium Project. Three-Day Event Details at 33 Washington Street: MMA Opening Party with Summer Games: Mahjong & Backgammon Tournament Monday, July 13 4:00–7:00 p.m. MMA Pop-Up Shopping Event Tuesday, July 14 & Wednesday, July 15 10:00 a.m.–4:00 p.m. For vendor information, and additional details, visit https://www.mariamitchell.org/2026-summer-pop-up About the Maria Mitchell Association: The Maria Mitchell Association is a private non-profit organization. Founded in 1902, the MMA works to preserve the legacy of Nantucket native astronomer, naturalist, librarian, and educator, Maria Mitchell. The Maria Mitchell Association operates two observatories, a natural science museum, an aquarium, a research center, and preserves the historic birthplace of Maria Mitchell. A wide variety of science and history-related programming is offered throughout the year for people of all ages. ###

July 15. {1863} My dear Sally . . . I think Mitchell is all right in his algebra. He can’t stand an examination in Trig but I don’t believe he will have a rigorous one. Father has seen the Prof. and will give him a letter to them.  If you can’t be honest with your sibling, who can you be honest with? Apparently, Sally Mitchell Barney’s son, William Mitchell Barney – known as Mitchell as his cousin William Mitchell Barney was known as Willie (how is that for honoring your father?!) – was visiting his aunt Maria and his grandfather, William Mitchell, at their home in Lynn, MA. Sally still lived on Nantucket and I suspect Mitchell was not only visiting but getting some much needed help with his mathematics by his aunt Maria. As always, she is brutally honest – he won’t pass a test in trigonometry (but, neither would I!). JNLF

“If you don’t look, you don’t see. You have to go and look.” -Edith Andrews

In April and early May, at long last, the Mitchell House roof was replaced. (I noted this in an earlier blog.) I had also noted that the roofwalk, given the condition it was in and its location – sitting on the ridge – had to be replaced. They had thought they could jack it up – as they have done with other walks – but the Blizzard of February 2026 that was ALL wind (83 MPH winds – read Category 1 Hurricane) and no real snow, made the walk impossible to treat in such a manner (read: crumble). So, after much discussion, review by our preservation easement holder, and permits, as well as some fundraising, we are replacing the roofwalk. The prior walk was not the original. The original blew off in a gale in the late nineteenth century, replaced at some point in the 1930s, and likely replaced again in the 1960s or 1970s. Then, since that time, it was heavily repaired. Its framing members were notched to accept the ridge boards (read: peak) of the roof and I think that may have been an original way to construct a walk. Makes perfect sense – and gives the walk more support and a lower profile. It was after all about putting out chimney fires and preventing roof fires. People copied what worked – and there have been a few others noted to be built in this manner still. It presents an issue though – because if you need to work on the ridge board or close to it – you cannot get to it easily – I guess you may be able to access it to some extent by lifting the deck boards of the walk. The new Mitchell House roofwalk will sit about six inches above the ridge – which will also allow air to circulate better over the ridge and the shakes in that area. That is the only thing that will really be different. It is protected by a preservation easement – as part of the Mitchell House’s easement – and frankly, even if we did not have an easement, we would not want it to look any different. So keep your eyes to the skies at 1 Vestal as we work to re-build the walk. With a special thank you to Barber and Sons and Lydon and Sons. JNLF

1875, June 20. A meeting of the Officers of Congress was called at the house of Mrs. Hanaford, 5 Summit Ave., Jersey City. The weather was intensely cold. I went to New York on the 19 th and stopped with my friend Mrs. Clapp, 100 W. 54 St . . . .It was a question who should preside. Mrs. Hanaford thought the Chairman of the Executive Committee should and I had been told that I should, etc. The question was decided by the non-arrival of the Chairman of Ex.Com. I called them to order at an hour after the time appointed. Of course I made many blunders, as I have never presided before, but I continued for 4 hours. We did a few good things . . . The thing most weighing on Maria’s mind at this meeting was the looseness of membership for the Congress. She felt people were not being vetted properly in some areas of the country and thus they may allow in “undesirables.” I would take this to mean women who were not entirely behind the cause of the Congress and the Association for the Advancement of Women. I am not surprised by her suspicions and likely she was correct – one could see naysayers gaining access to this group and trying to destroy it from the inside. The women’s rights movement would have many schisms within it as people disagreed and broke into smaller factions.  Another important thing to point out is that Mrs. Hanaford is Nantucket-born Phebe Coffin Hanaford. Raised a Quaker, like Maria, Coffin Hanaford would become the first woman Universalist minister in New England – among many other firsts. She grew up with Maria, attended and taught at the Coffin School here on Nantucket, and was a founding member of another women’s organization, Sorosis, which Maria was also a founding member of. It’s nice to see two sister Nantucketers continuing to work together as adults – far from home! JNLF

After many, many years of service, our picket fences are getting a much needed replacement. We are starting with the fence on the north side of Vestal Street along the front of the Maria Mitchell Vestal Street Observatory (MMO). This fence is being replaced with part of a grant from the Community Preservation Act. The grant was for the exterior conservation work and landscape issues related to the MMO. The current fence is approximately thirty-five years old so it did rather well. It had replaced a very old fence – one I wish we had kept! But it had been hit many times by cars and had so much paint on it, they decided to replace it. We have small part of that fence still and we will be reproducing it for all the fences we are replacing here on Vestal. The fence is not much different than a normal picket here on island – it’s a hair shorter but it also has a sort of rolled top – not this cut style. I am excited to have this fence back! The new fences are being built by Michael Gault – owner of Gault Woodworking and a Nantucket Preservation Trust Traditional Building Methods award winner. His work is incredible – and lucky for us – he loves building fences!  So keep an eye out – work has begun already. The south side where the MMA Research Center and Hinchman House are located will be done in the fall in the same style. JNLF

NANTUCKET, MA – On Thursday, June 11, 2026, the Nantucket Maria Mitchell Association Aquarium, Hinchman House Natural Science Museum, Historic Mitchell House, Vestal Street Observatory, Loines Observatory, and the Maria Mitchell Association Research Center will open for the 2026 summer season. The Historic Mitchell House, located at 1 Vestal Street, will be open for tours Monday–Friday, 10:00AM– 4:00PM, and Saturday 10:00AM–1:00PM. Built in 1790, this traditional Quaker house was acquired by the Mitchell family in 1818. The home became a museum in 1903 after the Maria Mitchell Association’s (MMA) founders acquired the House in 1902 to preserve the legacy of one of Nantucket’s most celebrated daughters. The House contains many stunning artifacts from the Mitchells’ daily life in the nineteenth century, including many of Maria’s personal items such as beer mugs, opera glasses, and her Dollond telescope. The House is well known for the remarkably preserved example of faux-wood grain painting in the kitchen from the 1850s. The Vestal Street Observatory, next to the Historic Mitchell House, will be open for tours Monday – Saturday, 11:00AM–1:00PM. Built in 1908, the Observatory’s original dome now houses an 11-inch research telescope. Public accessible spaces include the Astronomical Study which displays historic astronomical collections, including Maria Mitchell’s 5-inch Alvan Clark telescope from 1858, and the Pillar Room where changing exhibits are featured. The current exhibit, “The Mitchells: A Family Constellation” showcases members of the Mitchell Family. The MMA Aquarium, located at 32 Washington Street, will be open Monday–Friday, 10:00AM–4:00PM, and Saturday 10:00AM–1:00PM. Located on the waterfront of Nantucket Harbor, the MMA Aquarium displays local Nantucket species and offers an immersive place to learn about the amazing marine life of the island. Displays are consistently evolving and range from crabs and shellfish to fish and eels. All the hungry creatures at the Aquarium are fed daily during our “Feeding Frenzy” program, where attendees learn about and observe the unique feeding behaviors of our animal ambassadors. All ambassadors of the MMA Aquarium are locally collected and are re-released back into the wild at the end of the season during the annual “Release Day" event, scheduled for Saturday, October 10 this year. The Hinchman House Natural Science Museum, located at 7 Milk Street, will be open Monday–Friday, 10:00AM–4:00PM, and Saturday 10:00AM–1:00PM. An exciting space for inquisitive minds of all ages, the Natural Science Museum is a cross between a classic natural history museum and a science center. It is a beloved place to learn about the plants, animals, and birds of Nantucket. All the hungry creatures at the Museum are fed daily during our “Ravenous Reptiles” program, where one can learn about the unique adaptations of turtles, frogs, snakes, and more. The “Keeper for a Day” program, new this year, allows children and young teen participants to prepare diets, feed members of our living collection, clean and refresh enclosures, and learn how to keep the MMA animal ambassadors healthy and thriving. The Loines Observatory, located at 59 Milk Street Extension, will be open to the public for Stargazing Open Nights from 9:30-10:30PM Mondays, Wednesdays, and Fridays through June 27. Beginning June 29 through August, Open Nights will be offered Monday, Tuesday, Wednesday, and Friday. Please view our calendar at www.mariamitchell.org/calendar for up-to-date information as Open Night times will change throughout the summer. All Open Nights are pre-registered programs and are weather dependent. When a special natural occurrence is forecast in the night sky – such as meteor showers, a new comet, or a lunar eclipse – the Loines Observatory is the place to be. During Stargazing Open Nights, visitors can view a variety of astronomical objects in the night sky through our 8-inch Alvan Clark refractor and our modern 24-inch research telescope. MMA staff will lead constellation tours, and patrons can learn about the innovative research conducted by our astronomers and interns – a fantastic opportunity for all your astronomy-related questions to be asked and answered. The Maria Mitchell Association Research Center, located at 2 Vestal Street, will host “Biological Collections Open Hours” by appointment only. At Open Hours, visitors can learn about the biological collections and their importance to science, in addition to examining different specimens during each session. From specimens of birds and mammals to insects and plants, you never know what will be on display! Appointments can be scheduled by emailing programs@mariamitchell.org. MMA Property Passes can be purchased for the Aquarium, Hinchman House Natural Science Museum, the Historic Mitchell House, and the Vestal Street Observatory. A property pass includes admission to the four museum sites. The cost of a property pass is $24 for children and $42 for adults. Open Night admission at Loines Observatory is $17 for children and $27 for adults. Admission to MMA properties is free to MMA Members and Stargazing Open Nights and all programs are discounted 20% for members of the MMA as well. The Maria Mitchell Association was founded in 1902 to preserve the legacy of Nantucket native astronomer, naturalist, librarian, and educator, Maria Mitchell. After she discovered a comet in 1847, Mitchell’s international fame led to many achievements and awards, including an appointment as the first professor of astronomy at Vassar College. Maria Mitchell believed in “learning by doing” and today that philosophy is reflected in the MMA’s mission statement, programs, research projects, and other activities. The Maria Mitchell Association operates two observatories, a natural science museum, an aquarium, a research center, and preserves the historic birthplace of Maria Mitchell. A wide variety of science and history-related programming is offered throughout the year for people of all ages. ####