Hi Tim,
I haven't any new info to share; haven't gone back any further than Bernard Hargrafen. It does seem coincidental that our families settled in the same area & the spelling of our names are similar. Most of the Hargrafen/Hargrave families are centered in Iowa, Minnesota, etc. the same as yours. Maybe we do have a connection. I'm willing to share my info with you, just ask away. You can e-mail me directly if you want, here is my addy
lhargrave1@cox.net Thanks!