Shirley,
I don't recall responding to your post to me. So I will do it now.
I am sorry to say I do not know who my Thomas Trousdale left
PA with or even where he settled in Ohio. I <think> the Thomas Trousdale in Dauphine Co., PA in 1790 - later had sons Thomas b: 1800 and John b: 1813 in Ohio - somewhere.
The son Thomas Trousdale b: 1800 went to Lancaster Twp., Jefferson Co., Indiana in 1827 and married a Margaret Patton.
That's all I know at this point in time. No ADAIR that I know of.
Regards, Judy Mills Boie