"United States Census, 1850", , FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MX7X-2KC : Sat Mar 09 13:37:55 UTC 2024), Entry for Philander Hinkley and Ann M Hinkley, 1850.
No wife listed; Anna M. is 10 year old daughter.
In 1850 census among the various members of his household is Violet Hinkly, age 63, b. Mass. (could be his mother, who may have been Violetta Gibbs, d/o Jonas Gibbs)