Hi Doug

I dont have anything specific for you, sorry, but your william has to tie in with the other Iricks. I have a lot of Irick info, beginning with Elizabeth Irick. She was born 1800, living in Anderson County. I do have she had a son Willis b 1837 but that doesnt match up with your info. I do not have info on siblings of Elizabeth, so perhaps he relates to her that way or as a son of a brother. If you need this info on Elizabeth you can go to my website, book section, Irick section. it is indexed too. it is:
http://familytreemaker.genealogy.com/users/p/a/p/Penny-Papen...
Let me know if it helps

Penny