Donora , Pa produced
Stan the man Musial
Griffey Sr
Griffey Jr..
Griffey Sr's dad , buddy played high school ball with Musial
Donora population 4,500
Sometimes these small towns turn out some real talent. Especially in these old steel towns where the only way out was usually athletics.
Look at Blaine, Ohio - (technically unincorporated - closest “town” is Bridgeport, OH - just across the river from Wheeling, WV).
Produced the Niekro Brothers AND John Havlicek - who went to school at the same time and were actually neighbors. The odds of 2 HOF athletes (and a pretty damn good player) living next door to each other as kids have got to be up there.
I know there have been some pretty strong connections with some towns in California and Florida turning out talent - of course some of this is a result of historical powerhouse programs and kids transferring in thanks to a benevolent alumni / booster.