The Georgetown Historical Society will hold its fundraising auction at 7 p.m. Saturday and its annual meeting at 1 p.m. Sunday at 20 Bay Point Road.

Art, autographed books, lobstering on the Sheepscot, handcrafted items, vintage fabric and postcards, and local tours on land and water are among the items available for bid at Saturday’s auction. Works by Marguerite Zorach, Jason Schoener, Charlie Goodhue and William Zorach will be featured, as will crafts by Sarah Watson Kulis, Dory Kulis and Bob Trabona.

Food and drink will be provided during live and silent auctions, which run concurrently. All proceeds go to the society’s endowment fund.

Marissa McMahan, a biologist and Georgetown native, will keynote the annual meeting with a presentation titled “The Gulf of Maine in a Changing Ecosystem.” She will address how human interactions with ecological systems, specifically how overfishing, climate change, the use of bait, and gear modifications, have influenced the lobster industry in Maine.

McMahan received her master’s degree from the University of Maine and is currently enrolled in a doctoral program at Northeastern University. She worked for several years with The Lobster Conservancy and the Gulf of Maine Research Institute and was a teaching assistant at the University of Maine’s Darling Marine Center. Having grown up in a lobstering family, she has worked extensively on lobster boats and also hauled traps by hand from her own skiff.

The annual meeting will also premiere the society’s 47- page color catalog of its 2011 exhibit “Georgetown Goes Modern: The Modern Art Movement Meets an Island Community.” The exhibit, which ran as a companion exhibit to the Portland Museum of Art’s exhibit “Maine Moderns: Art in Seguinland,” featured four dozen works by modern artists in Georgetown during the first half of the 20th century. Both the new GHS catalogue and the PMA catalogue will be available for purchase.

Both events are free and open to the public. For more information contact GHS at georgetownhistorical@gmail.com or 371-9200 or check its website, georgetownhistoricalsociety.org, or its Facebook page.