The Riverdale baseball and softball teams attended the ceremony this past Tuesday unveiling the new plaque that was placed in honor of William Hoy, who was born in Hancock County in 1862.
Gov. Mike DeWine gave the keynote address.
The marker was installed at the intersection of Hancock County Roads 8 and 26.
Hoy was a center fielder who played for the Cincinnati Reds and two Washington D.C. franchises.
He was the most accomplished deaf player in Major League Baseball history.
The Riverdale teams got their pictures taken with Governor Mike DeWine.
Representative Jon Cross also attended.
The ceremony was held as part of National Deaf History Month.