I also have traced my linage back to Edward Ainsworth, from the book "Ainsworth Families in America" Parker pub 1893. I would also be interested in any information anyone has further back. However, on about page 20, it states that "Edward was born in 1652 in England; Married January 11, 1687-8, Joanna Hemmingway (who was born September 21, 1670... etc. etc.)" Do you have information that he was born in Springfield Mass? If so, I am very interested in those sources.