Sharlene, I would have called you, except it is so late. I was at the FHC and had time to look up a few things.
The Ancestral file has William Coons born in Westmoreland C. Pa. in 1819. The IGI has his dat of birth as 17 May 1819.
The Ancestral file has his father as Peter Coons, dob= However, the 1790 US census does not list any Coons in Westmoreland Co.
There are some inconsistant dates names in the Ancestral file.
They have Laura E. Coons born 30 Nov 1853. They also show William Coons marriage date with Emeratte Elizabeth Goodwin as 1853.
The addendum to the IGI shows the marriage date as in
The addendum to the IGI also shows Emerett Elizabeth Goodwin being married to a William Coons abt 1859, in New Haven, New Haven, Conn.
Did she leave the William Coons in California after the baby was born and then moved to New Haven to marry the second William?
I don't have the 1820 census, which would show if Peter Coons was in Pennsylvania.
Starting with the 1850 census it shows the members of the household. You might look in the 1850 census for California for the Coons.
Anyway something is not right.
I looked in the AIS (Accelerated Indexing System) for Coons and I couldn't find any Peter or William in Penn. They cover the census's from 1790 to 1850, showing only head of household.