[S3303] Ancestry.com, 1870 United States Federal Census, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2009;), Year: 1870; Census Place: Cambridge, Guernsey, Ohio; Roll: M593_1206; Page: 391B; Image: 2418; Family History Library Film: 552705.
Record for Frederick Montgomery http://search.ancestry.com/cgi-bin/sse.dll?db=1870usfedcen&h=39666303&indiv=try