I believe I can help solve the mystery of who owns the "laptop bag" posted in a Sanilac Co. Michigan forum. I just made contact with a member of Scott family (yesterday, as a matter of fact). I am related to the Scott family and several others mentioned in your post but was unaware of it until 10-09-08. Another coincidence is that I have not visited the Sanilac Co. website for many years, until yesterday.
Anyway, my initial contact with a member of the Scott family was brief.....and further communication was postponed til next Tuesday. I will pass this information on to them today and I think someone will contact you soon. They should be able to shed some light on the mystery, perhaps even the owner of the bag.