Calvin Rival Smith married your Martha C. Minkler as his second wife. She was a daughter of David Minkler and Rachel W. Eaton. C.R. and Martha had at least three children: Cora Smith, Harvey Smith, and Harry Smith but I have no further information on their children.
David Minkler/Minckler was a brother to my ancestor, Levi Minckler. Both resided in Winnebago County, WI, after leaving NY.
David and Rachel had: 1-Harriet md E.H. Cross. 2-Cyril David md Mary Ann Thrall. 3-John. 4-Sarah md W.P. Washburn. 5-Gideon Willis md Mary Lavina Driesbach. 6-Charity md Robt. C. Richardson. 7-Marie md your Calvin Rival Smith as his first wife. They had one child, Ada Smith who md a Chaterton.
8-Martha md Calvin Rival Smith as his second wife.