On Their Shoulders: Annie Jump Cannon, 1863-1941

Jascin N. Leonardo Finger • April 5, 2021

While March and with it, Women’s History Month, is over, I wanted to re-highlight another woman who played a role in the MMA. While we perpetuate and promote the legacy of Maria Mitchell, our namesake, the Nantucket Maria Mitchell Association has been built upon the shoulders of some incredible women. Annie Jump Cannon, who I have mentioned before, is one of those women.


Annie Jump Cannon was among the founding members of the MMA but she was also instrumental in the development of our astronomy program. With a growing desire to further develop a fledgling astronomy program in 1906, the MMA began a dialogue with Harvard University’s Observatory and its director, Edward Pickering, Ph.D. The connection to Harvard was to become essential to the success of the beginning years of the Maria Mitchell Observatory and continued a legacy of friendship and work – Maria Mitchell and her father worked with the Bonds who once ran the observatory at Harvard and the families were close friends.


Besides his advice and assistance, Pickering asked a member of his staff, Annie Jump Cannon to advise and assist the MMA. This “provided an indispensable collaboration for Nantucket astronomy” with Cannon spending two weeks on the island in both 1906 and 1907 lecturing and teaching. While back at Harvard, she continued to teach the students on Nantucket by mail. Cannon would go on to be recognized as the leading woman astronomer of her generation and also as the founder of the astronomy department at the MMA.


Completed in 1908, the Maria Mitchell Observatory now was in need of a permanent astronomer. An Observatory Committee was developed and chaired by Annie Jump Cannon. From 1909 through 1911, the Association was able to employ an astronomer to teach classes, observe, provide lectures, and open the observatory for public observing for approximately a month each summer. As the demand grew, the MMA realized that a more extensive program was needed and the Astronomical Fellowship Committee began to raise funds for an Astronomical Fellowship Fund. With the support of many generous donors and a matching gift from Andrew Carnegie, by 1911 the MMA had the funds it needed to support the fellowship and began its search for an astronomer who would conduct research and provide lectures, classes and open nights for the public from mid-June through mid-December. The fellow would spend the remainder four months in research and study – every fourth year a full year of study would be spent in an American or European observatory.


With Pickering, Cannon developed the Harvard Classification Scheme, an attempt to organize and classify stars by temperature. She was one of many women whom Pickering hired to reduce data and carry out astronomical calculations. She would go on to become the Curator of Astronomical Photographs at Harvard. She received a regular Harvard appointment but just two years before she retired – she was named the William C. Bond Astronomer. Today, there is the Annie Cannon Prize which is awarded to women astronomers who have made outstanding contributions in astronomy.


JNLF

Recent Posts

By Jascin N. Leonardo Finger • October 1, 2026
10mo 1, 1847. {October 1, 1847} This evening at half past ten Maria discovered a telescopic comet five degrees above Polaris. Persuaded that no nebulae could occupy that position unnoticed it scarcely needed the evidence of motion to give it the character of a comet. From the journals of William Mitchell, father of Maria. One hundred and seventy-nine years later! JNLF
By Jascin N. Leonardo Finger • September 21, 2026
Sept. 24, 1881. . . . Mr. I. {van Ingen} thinks that not a person on the Board of Trustees would approve of the clause in Mr. Vassar’s will which objected to women as occupants of chairs. Just months before, Maria Mitchell had written a letter describing the controversy surrounding the bequest of Matthew Vassar to the college he founded. The large sum was separated out within his will, including the establishment of department chairs. The bequest for this action, however, did not allow for women professors to have a chair. Quite shocking for a women’s college but then, there were early trustees in the College’s founding who believed that women professors should not exist at Vassar! Maria would be the first professor Vassar hired – male OR female. JNLF
September 18, 2026
NANTUCKET, MA— The Nantucket Maria Mitchell Association (MMA) is pleased to announce the launch of its 2026 Scalloping Field Trip Programs and Special Scalloping Experiences, set to begin October 1. These hands-on, educational experiences invite participants to explore the island’s coastal waters alongside MMA Aquarium staff while learning about the ecology and conservation of Nantucket’s iconic bay scallops. SCALLOPING FIELD TRIPS Join the MMA Aquarium Manager, Chelsea Petrik, and head into the water to collect scallops while learning about their biology, life cycle, and the challenges bay scallops face in today’s changing environment. Hand nets and adult waders will be provided. A shellfish permit is required to participate if attendees wish to take their catch home. Scalloping Field Trips meet at one of multiple locations along Nantucket Harbor to account for changing scallop availability. Registrants will be notified of the exact location via email before the day of the program. Personal transport to and from the meeting location is required to participate. Dates: October 1 ,3, 4, 7, 8, 14, 17, 18, 21, 23, 24, 28, and 31; November 1, 4, 6, 12, 14, 15, 18, 21, and 22. Cost per Participant: $50 Pre-registration is required for this event and closes two hours before the start time of the program. Scalloping Field Trip Registration Link: https://112458a.blackbaudhosting.com/112458a/Scalloping-Field-Trip-01Oct2026 Private group scalloping field trips are also available for groups of up to eight people on select dates. To inquire, please e-mail programs@mariamitchell.org. “THE GREAT SCALLOP HUNT” — A SPECIAL SCALLOPING EXPERIENCE In addition to the MMA’s regular Scalloping Field Trips, the MMA will offer “The Great Scallop Hunt, an Island Immersion” on Friday, October 2, and Saturday, October 3. These special, separately ticketed experiences invite participants aboard Captain Bruce Beebe’s boat for an insider scalloping expedition on Nantucket Sound. Guests will harvest, shuck, and savor fresh Nantucket Bay scallops alongside Captain Beebe, with a picnic lunch and beverages included. Only six spots are available for each of these exclusive opportunities to discover Nantucket with Bruce Beebe, exploring the island’s most cherished traditions and hidden corners. Pre-registration is required. Tickets are $500 per person, with $250 of the ticket price tax-deductible. These experiences are separate from the $50 Scalloping Field Trip Program described above. A shellfish permit is required for attendees who wish to take their catch home. The Great Scallop Hunt Registration Link: https://112458a.blackbaudhosting.com/112458a/The-Great-Scallop-Hunt For more information on obtaining an individual shellfish permit, visit the Town of Nantucket website: https://www.nantucket-ma.gov/404.aspx?aspxerrorpath=/2304/Shellfish-Permit . 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 female 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. ###
Show More