Mason began his architectural career working for Detroit architect Hugh Smith in 1875, but this only lasted a summer. Afterward, he moved to the firm of Henry T. Brush, where he worked for the first nine months without pay. Mason started out assigned to some specific detailing work on the
George O. Robinson House and the
Detroit Public Library. One of the first buildings in which Mason received equal billing for the design was the
Ransom Gillis House. In 1878, he joined with Zachariah Rice to form the firm Mason & Rice. This partnership lasted until 1898, after which time Mason continued his practice alone. Mason married Ida Whitaker in 1882, and they had one daughter. A number of Mason's works, either by himself or as part of Mason & Rice, are listed on the
National Register of Historic Places. Mason died on June 3, 1948, aged 91, in Detroit. He was buried at Evergreen Cemetery in Detroit. == Selected commissions ==