The Waterloo Masonic Temple is a historic building located in Waterloo, Iowa, United States. The first Masonic lodge in town, No. 105 A.F. & A.M, was established on the west side of the Cedar River in 1857. Lodge No. 296 was organized on the east side of the river in 1871, and the two consolidated into one lodge eight years later. They built their first Masonic Temple in 1899 at the intersection of Sycamore Street and East Park Avenue. The city was in the midst of a period economic growth that would see its population double each decade from 1890 to 1910. By 1918 the Masons felt the need for a new facility. Property at the intersection of East Park Avenue and Mulberry Street was acquired in 1920. Local architect John G. Ralston, a fellow Mason, was chosen to design the new building in what