Mary R. Bigelow m. John C .Rhiver in PA

Looking for connections with Mary R. Bigelowb.Jan. 1872, married John C. Rhiver in 1905 (b.1870) ( I also have her name as Mary B. Wolfe) she could have been married previously and using BIGELOW as her middle name. I don't have any proof of a prior marriage. Although she was abt 33 yrs. old when she married John.
Mary's parents were Lewis A. Bigelow and Mary C. Hoover.
John and Mary had 4 children: Thelma Bigelow (my grandmother), Lewis Pomeroy, Charles E.,and Beatrice. As far as I can tell the family resided in Enola, PA.
I'm looking for info on the possble prior marriage to WOLFE and any connections to the family. Any help would be greatly appreciated.