Blackfalds Historical Society trivia question- Week 3

Blackfalds Trivia question for week of February 3

One of the oldest buildings in Blackfalds is on main street ... currently called After The GrindWho originally built this building and what year did it first open?

ThanksLj 

Hint.... there is a historical sign at the building that will tell you everything you need to know.  Go for coffee and get the answers.