Big Finds in The MMA Archives
Jascin N. Leonardo Finger • August 31, 2020
It never ceases to amaze me what I uncover in the MMA’s Archives and Special Collections.
This item was in a box labeled “Lydia Hinchman.” Not all of our institutional archives have been arranged and described – it’s a big project that has been begun but not completed – so this has not yet been processed. Lydia, a cousin of Maria’s, was one of the MMA’s founders and the driving force for purchasing several of the properties surrounding the Mitchell House. She was the force behind creating the Maria Mitchell Vestal Street Observatory in 1908.
This is from one of her MMA scrapbooks. And it is a drawing – likely by her – and describes in detail the building of the Observatory foundation and how it works. It’s always hard for me to describe the “pillar room” and what lies beneath but you can sort of make it out in this image where she has drawn a line to show the ground level. The foundation of the dome goes pretty deep into the earth – it’s a cement and brick foundation – and the telescope is meant to be supported by this piece – the walls and the movement of a building cannot affect the telescope so they surround this massive part. It’s why at Loines Observatory, for example, we do not put telescopes on the deck because as people walk across it, it makes the telescopes bounce – it makes the view unclear and can also move the telescope from what it is focused on. If an observatory moves – the telescope doesn’t as it sits on a solid separate piece.
JNLF
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NANTUCKET, MA— Join the Nantucket Maria Mitchell Association (MMA), Nantucket Land and Water Council (NLC), and Sustainable Nantucket (SN) for the Seventh Annual Nantucket Green Crab Week! The MMA, NLC, and SN will be offering fun daily events from Monday, August 3 to Saturday, August 8 to learn about, and take action against, invasive European green crabs on Nantucket. European green crabs were first introduced to North America in the 1800s, likely traveling in the ballast water of merchant ships from Europe. This invasive species is now abundant on Nantucket, threatening crucial aquatic resources, including eelgrass beds, shellfish populations, and native crab communities. Together, as a community, it is possible to help prevent green crabs from destroying the natural resources that make Nantucket’s waters so special! Please come join us during Nantucket Green Crab Week to learn more. MMA Green Crab Identification Workshop and Derby Information Session Registration Link: Maria Mitchell Association Monday, August 3, 3:45 PM – 4:30 PM Price: FREE Location: MMA Aquarium, 32 Washington Street Join MMA Aquarium staff to learn how to identify the European green crab (Carcinus maenus), an invasive species that threatens Nantucket's native species and habitats! We will compare these species to local crab species and determine their biological sex. This is a great chance to learn about our annual Nantucket Green Crab Derby and all its events! MMA Nantucket Green Crab Survey: Seine Method Registration Link: Maria Mitchell Association Tuesday, August 4, 3:15 PM – 4:15 PM Price: FREE Location: Hither Creek Beach Access (Beach Access #52) Join MMA Aquarium staff on a survey for invasive European green crabs! This survey will be a part of the MMA Nantucket Green Crab Community Science Survey that you can do yourself at any time. In this session, we will be using a seine net. Annual Green Crab Fertilizer and Bait Pickup Registration Link: Maria Mitchell Association Thursday, August 6, 10:00 AM – 12:00 PM Price: FREE Location: Sustainable Nantucket's Community Farm, 168 Hummock Pond Rd In collaboration with the Sustainable Nantucket, please join us for this free, fun, and exciting way to help control the population of the invasive green crab, all while creating an environmentally friendly fertilizer for your garden. For folks to make their own green crab fertilizer, they should bring completely waterproof boots they're comfortable crushing dead crabs with, as well as a sealable bottle or jar to take home their fertilizer. We will provide crabs, coolers, vinegar, and take-home fertilizer instructions. Nantucket Green Crab Survey: Wading and Hand Net Registration Link: Maria Mitchell Association Friday, August 7, 5:00 PM – 6:00 PM Price: FREE Location: The Creeks/Harbor Flats, 99 Washington Street Ext Join MMA Aquarium staff on a survey for invasive European green crabs! This survey will be a part of the MMA Nantucket Green Crab Community Science Survey that you can do yourself at any time! In this session, we will be wading and using hand nets. Annual Green Crab Derby Registration Link: Maria Mitchell Association Saturday, August 8, 12:00 AM – 4:00 PM Price: $10, Groups of Up To 4 Persons Can Compete Help the Maria Mitchell Association and the Nantucket Land Council fight the green crab invasion by participating in the annual Nantucket Green Crab Derby! Participate in a team of up to 4 to help us maintain healthy marine habitats and for a chance to win prizes! Rules and prize details are detailed in the reservation process. Green crabs can be caught between 12am – 4pm and dropped off at the Maria Mitchell Association Aquarium between 12pm – 4pm! Sustainable Nantucket is a nonprofit organization dedicated to strengthening Nantucket’s local food system and building a more sustainable island community. Through education, advocacy, and community programs, the organization supports local farmers and producers, increases access to locally grown food, and connects the community with Nantucket’s agricultural resources. The Nantucket Land & Water Council is a nonprofit organization dedicated to protecting Nantucket’s land, water, and natural resources. Through conservation, research, education, and advocacy, the organization works to preserve open spaces, protect water quality, and ensure the long-term environmental health of Nantucket for future generations. 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. ####
August 1, 2026 marks Maria Mitchell’s 208 th Birthday! To celebrate, join us for an open house the day before on July 31, 2026 from 3-5PM . Since just about the founding of the Maria Mitchell Association – way back in 1902 – the MMA has hosted some celebration or marked the occasion of our namesake’s birth. From 3-5PM, Vestal Street will be close to traffic and our Vestal Street properties will be open free to the public. We will have activities, games, art projects, live music with Susan Berman and Ray Saunders, and refreshments will be served. So, stop by and say hello! JNLF