1895 - M. O. Wilson & Son, dealers in general merchandise. Lyle Minn.
1896 - M. O. Wilson & Son, dealers in general merchandise. Lyle Minn.
1897 - Wilson & Son, Lyle, Minn.
1901-01-30 Mower County Transcript - obituary of M. O. Wilson "he was one of the oldest and most enterprising merchants of this place, having been in the general merchandise business here since 1875"
1901-11-08 - It is understood that the firm of M. O. Wilson & Son will be changed to Wilson Bros., as soon as the estate is divided and an invoice of the stock taken. The firm will consist of Andrew and Theodore Wilson.