I found this stamp on the east side of the dead-end block of Shepard Street south of Elizabeth.

Unfortunately, finding anything out about someone with such a common arrangement of names is challenging. I keep getting hits for a Fred Smith, Jr., of Dimondale who was apparently a locally legendary horseshoe player in the 1960s. Also, Dimondale apparently calls itself the Horseshoe (as in the game) Capital of the World. This is the first I’ve heard of it. I don’t think that Fred Smith has anything to do with this, though; based on obituaries I found of both him and his father, neither appear to have been in the concrete or construction business.