I believe we have a Harvey C. in our line related to my grandfather.
My grandfather is George Earl Brockett, born approx. 1886.He lived at times in IL, IN, and MO.He had a daughter names Eileen born early 1900's, I think in MO.He may or may not have been married to Eileen's mother (I think perhaps a shotgun wedding).The were not together long.I know Eileen spent some time in an orphanage as a child.
George moved to California and met Edna May (Grant) Rowe.They were married in AR and lived in CA.They had one son, James Earl, born 1939.
Any of this sound familiar??If so contact me and we can compare notes.