Weld was a descendant of
Joseph Weld, who came to
Massachusetts Bay Colony in the early 17th century and was involved in the
Pequot War and subsequent negotiations. He was born on 8 May 1775 at
Roxbury, Suffolk, Massachusetts. Weld lived his early life in Weld Hall, the family home on Weld Hill in the
Forest Hills section of what is now
Jamaica Plain. Named after the prominent local revolutionary sympathizer and historian
Reverend Dr. William Gordon, Weld was the fifth son of
Colonel Eleazer Weld, one of seven Weld family
American Revolutionary War veterans. Like many family members, William Gordon Weld graduated from
Harvard, a university with Weld ties from the 17th to the 21st centuries. He practiced law in Mr. Quincy's law office in Roxbury, Massachusetts. Later at the age of nineteen "he was master of a packet-ship sailing between London and Boston, and at twenty-seven was attacked off Tunis by Algerine pirates, not only beating them back in fair fight, but recapturing two American vessels which had been seized." ==Maritime industry==