This census (1850) for Fabius, Onondaga, NY, USA shows a male 6 year old living as a son of a John W. Mills and a Patty Mills:
https://familysearch.org/pal:/MM9.1.1/MCB5-DZS
Looks like he was born in Massachusetts and was 29 at the time of the census.
Search Census records on Familysearch.org for Almon Mills in New York: there are many hits: including showing a spouse names Effie.
Good luck.
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The 1930 census is quite interesting: showing he was living as the father in law: and with a sister in the house as well: implies a daughter's name of Maude Mills
