On East Lincoln Street in Pesotum, Illinois there is a building that I
believe was the Farmers and Merchants Bank. I need to know when it was
originally constructed.

Hi dloyd,

After searching for the information you requested, I contacted the
Village of Pesotum at http://www.pesotum.org/ and received this reply
from the Village President -

"The building you are inquiring about was originally The Farmers and
Merchants Bank, which was established September 12, 1912. I'm assuming
that since it was the original business in that building, the building
was constructed and completed at that time.
The bank closed in 1941 and was empty until March 1966 when the
Hillard Insurance Agency moved in.
Several years ago Church Planning Associates moved into the building
and still occupy it.
I hope this information helps."

Keywords used:
Pesotum Illinois 
://www.google.com/search?sourceid=navclient&q=pesotum+illinois

I hope this information was useful to you and if you have any
questions regarding my answer please don't hesitate to ask before
rating.
Best regards,
rainbow~

Thanks.  I have been trying to find that answer for over 6 months!

I have contacted the Village of Pesotum.  I'll let you know what response I get.