The trees in the lower left corner were the site of the former Lincoln School. This was a one-room schoolhouse that was part of the old Stephenson County district 11, which eventually was consolidated into the Lena-Winslow district. A photo of the school as it was in 1918 is archived on the Lena-Winslow school district website:

https://www.le-win.net/ourpages/auto/...

These photos originated from a 1918-19 Stephenson County school directory. It contained photos of each school, along with the names of teachers and school board members.