In case anyone else is researching Viola May Cain, b. 2 Jan 1904, Waupaca County, Wisconsin, daughter of William M. Cain and Elizabeth (Bessie) Dutton Dodge Cain, I have found more info on her.

She married William Robert Speer (b. 28 Oct 1884, Minnesota) on 8 Dec 1923, Dayton Township, Waupaca County, Wisconsin.

Attached is a JPEG image of the newspaper obituary I found for William R. Speer (d. 15 Apr 1959, Riverside Community Hospital, Waupaca, Waupaca County, Wisconsin), giving the marriage date for William and Viola Cain, along with other information.