David Service Conwell (1793-1818) married Eleanor Perry (1795-1846). They were married December 1815. The name was originally spelled Cornwell but, as the story goes, Eleanor dropped the “r” after her husband was lost at sea in 1818. 

A daughter Eliza was born to David and Eleanor in 1816. In 1840, she married George Stull (1809-1851) who was also lost at sea. She died in 1852.

A son, David, was born to David and Eleanor in 1818. He married Almira Taylor (1820-1881) about 1843. David died in 1898.

David Jr. worked the Grand Banks fishery after which he pursued carpentry. In 1848 he and cousin Stephen Cook started a business outfitting whaling and fishing vessels. Though the partnership dissolved, David continued on his own and became one of the leading merchants in Provincetown. He built Conwell’s wharf and a large warehouse and had financial interests in vessels. He was considered a devoted family man and represented Provincetown in the Legislature in 1888-1889.