Thank you very much, Cheryl!That will answer some of my questions.I'll put it together with what I've got and see where I am.
I am thinking now that Jehu - and people have told me that Jehu was a nickname for John back in the day, like Jack is now - was the son of William Lusk and brother to Charles and William who went to Auglaize.
But I most likely will never be entirely sure. (How's that for a qualified assertion!)
And I too have not been able to find him in Kansas . . .