What is the fine-grained topic of the following text: COLTON, Albert, machinery; born, London, Eng., Jan. 31, 1858; sou of Henry and Martha (Young) Colton; educated in public schools and university, England; married, 1886, Louisa Schrubell, of Detroit; 1 daughter, Flor­ence (Mrs. Walter Walibaum). Only return the topic.
Albert Colton's biography