Hello Karen,
I haven't yet found any info about the parents of John W. Irvin. It looks like in Centre and Clearfield County PA around the early 1800s were at least a few familys of Irvins, and it's hard to say how they were all related. You may want to look into the children of General James Irvin, who was a prominent politician in Centre County. He seems to not have been a child of John W. Irvin though.
You may want to search through this document which has some family information about some Irvins in nearby Clearfield county:
https://archive.org/details/historyofclearfi00aldr