Myra Benson Campbell (aka or her mother) does not have an image.

Myra Benson Campbell
American
American, (1854–1946)
Myra Benson married David Campbell [Sallie Reynolds Matthews' cousin].
David Campbell was a nephew of Anne Maria Campbell [Sallie Reynolds Matthews' mother]. Myra's husband, Mr. David Campbell Sr. was Secretary-Treasurer for Reynolds Cattle Co., c. 1870-1930.

Source: Interwoven by Sallie Reynolds Matthews, pp 130 and 146.