James T. Herron, Jr.
The photograph is from a glass negative exposed by William Amon, probably within a few years of 1939. The occasion for the parade and bunting is not known.
The fire engine in front is probably Canonsburg’s 1925 American LaFrance Type 75 (note the lack of a windshield). The engine behind it may have belonged to the Houston Fire Company.
Conditions for photography were much better than on Memorial Day 1939.
Much of the material on the buildings and businesses on this block is from an article my father wrote: J. T. Herron, "A Walk Along Pike Street in 1941," JCTimes, Feb. 1983. Other sources are the 1936 and 1941 Directories, newspaper advertisements, and the list of participants (with addresses and slogans) in the 1939 Vacation Tours Contest.