 In 1970, the firm merged with Thomson & McKinnon, a brokerage house based in New York.At the time of the merger, the new firm, known as Thomson & McKinnon Auchincloss, had assets of $160 million () and 58 offices.By the time of his Auchincloss' death in 1976, the firm was known as Thomson & McKinnon Auchincloss Kohlmeyer.