VH -- That's possible. My father played around the area in those years before I was born, and certainly he played out at the Martz Playground in those years. He was a pipeliner and traveled extensively to work in the years surrounding my early days in the late 1950s and early 1960s. I first saw him play in a semi-pro league in upstate New York, not far from Buffalo, where we lived during the years I was 5 and 6. It was a decent league, I remember lots of people turning out to watch (a few hundred, maybe, which seemed like a lot) and they had well made uniforms in both white and road gray.
By the time we came back to Silver Grove for good, I was 6 and he was in his early 30s, and had pretty much hung it up as a player. In those years during the summer he would leave us in a trailer park in Silver Grove and light out for a job anywhere he could pile up some long hours while the pipeline work was fat. That could be several states away. No time for ball.
Now, I certainly would have seen your dad umpiring at Martz Playground. Any time my father was around on Sundays and we didn't go to Crosley we'd go up there to watch the Buckeye League games. It was only about three miles outside SG. This would have been from around 1965 through maybe 1970. I remember seeing Reds' former ace Jim O'Toole pitch there in the late 1960s or early 1970s, not long after he'd retired from MLB. Some good baseball played there.
Speaking of family baseball heritage, the real baseball player in my family was my father's father. He played at Eastern Kentucky back in the days before he went to France in WW1. Other old timers back in the 1960s who knew him when would come up to me and say he hit the longest home run ever hit at EKU's park. His other claim to fame: After coming back from France but before the army kicked him loose in maybe 1919, he played on some kind of military all star team in the south. I don't know many details, but allegedly they got a game with a group of barnstorming major leaguers and my papaw hit a double off Grover Cleveland Alexander. Believe that or not. All I know is it was a family story that everyone told back in the 1960s when I was a kid.