barron married jessie m. waldron in 1900 and adopted her daughters, jane and martha. mrs. barron died in 1918. after jane married hugh bancroft in 1907, barron became a prominent member of the boston brahmin bancroft family. martha barron married h. wendell endicott, heir apparent to the endicott shoe company. mr. & mrs. barron and the endicotts are buried in a joint family plot at the historic forest hills cemetery in the jamaica plain neighborhood of boston.