 Union Securities was bought by securities broker Eastman Dillon & Co. in 1956 to form Eastman Dillon Union Securities & Co.In 1979, Eastman Dillon (later Blyth, Eastman Dillon & Co.) was acquired by securities broker Paine Webber, which in 2000 became part of financial conglomerate UBS AG.Parts of J.& W. Seligman & Co. Inc. continue as a close-end investment company, Tri-Continental Corporation (NYSE