The Boston company was formed during the Civil War to recover transatlantic traffic from New York. Bonsor dates formation to July 1864, trading to 1867 and cessation to 1868. Another account gives foundation in 1863, commencement in August 1867 and failure for lack of funds that same year. It ran out of money before bringing a second ship into service.
USA, Boston.
Keep the explicit scope label independent; no alias or company identity is inferred.