John Deere's home stands on this hill today. It was sold in 1998 to a man now restoring it from a rundown state. It was configured as a multi family rental. one of the surprises discovered during remodeling was an early air conditioning system which was an underground tunnel running from a gazebo across the yard to the basement of the main house, this geothermal cooling system is quite innovative even by today's standards.
JD Heritage.net
Industrial Moline 1877 (looking East)