Birth Name: Jacob Tyler Realmuto
Place of Birth: Del City, Oklahoma, Oklahoma, U.S.
Date of Birth: March 18, 1991
Ethnicity: Italian/Sicilian, likely other
J.T. Realmuto is an American professional baseball catcher for the Miami Marlins of Major League Baseball.
J.T. is the son of Margaret and David Jess Realmuto.
Source: http://www.miamiherald.com