The aerial farm photos I show in many of these tributes came from the collection of my Great-uncle, Frank Ehrichs, who hired a photography company to take pictures of Iowa & Hayes Township farms and then once a week Frank showed a farm in the Denison newspaper as a contest...which he used to promote his grocery store business in Aspinwall.
I'm not sure of the year but you can see an old tractor and manure spreader in the lower right of the first picture which gives a little idea of the time-frame.

Ralph Vinke farm

I need help with the owner of this farm. e-mail me if you have information.

Unknown farm - thought to be a Vinke farm but apparently not, according to a Vinke family member.