537 W. Prospect Ave.
Street number prior to 1925: 991 Prospect

This Italianate home was built for Charles Pfennig and his wife Mina early in the 1860's, possibly 1865. By 1925 carpentry contractor Carl M. Zschaechner and his wife Emma lived here along with watchmaker Carl F. Zschaechner and Clara A. Zschaechner.

In 1857 Frederick and Charles Pfennig purchased the Genessee Flour Mill from Colonel Theodore Conkey. After Col. Conkey's war duty he partnered with the Pfennigs and when Charles died, Conkey repurchased the mill. It was sold to Kimberly, Clark & Company in 1879.