This is the Ostermeier Farm on what is now Ostermeier Road. Most of the buildings still remain. The only that's now missing is the milking parlor that sits next to the livestock building that was under construction at the time. It was the milking parlor and it burned in the mid 80s. There was also a large outbuilding added behind the machine shed on the right side of the photo.

Link to 1981 photo of farm.
https://vintageaerial.com/photos/illi...

2517 Ostermeier Road, about 4-miles south of Chatham, Illinois. View looks west.