On Sunday, April 6, from 1 – 2:30 at the Shattuck Visitor Center in the Back Bay Fens across from the Museum of Fine Arts Boston, Emerald Necklace docent Susan Helms Daley will give a talk on Harriet Hemenway, founder of the Massachusetts Audubon Society. Find out why there’s a street in the Fens bearing the family name. Free and open to the public.  Sponsored by The Emerald Necklace Conservancy.