Photograph of Ora Crosby Knapp of Bradley, Maine

Photograph of a man identified on the reverse as Ora Knapp.  The photograph was taken by the Orr studio of Old Town, Maine.  Ora was Ora Crosby Knapp.

See another post that features the photograph of Ora's daughter Leda Burrill Knapp at the age of six months. Leda's mother was Ora's third wife Edith C. (Burrill) Knapp, who died when Leda was young.

From brief online research, hopefully correct - corrections and additions requested:

Ora Crosby Knapp was born about 1859 at Bradley, Maine, the son of James Irish Knapp and Millie Holland (Billings) Knapp, who were born at Bradley, Maine, and Albion, Maine, respectively.  Ora would marry four times, I believe:

1. On August 25, 1880:  Hannah T. Burke
2. On April 14, 1900 at Old Town, Maine:  Lillian A. (Welch) Oliver, daughter of Sumner Welch and Orinda (Smith) Welch.  Lillian died in 1904.  
3. On August 8, 1906 at Corinna, Maine: Edith Corelli Burrill, with whom Ora had daughter Leda Burrill Knapp  Edith was the daughter of Wesley Sanford Burrill and Rebecca Geneva (Simpson) Burrill.
4. On June 13, 1922 at Bradley, Maine: Susan (Skillin) Kendall, daughter of John W. Skillin and Sophronia Jane (Brown) Skillin, Jennie", of Kenduskeag, Maine.  See other posts that feature photographs of John W. Skillin and Harry Albert Skillin.

Ora Crosby Knapp died in 1930.

If you have corrections and/or additions to the information above, please leave a comment or contact me directly.