Rocky Nelson was born in Portsmouth, Ohio.
Elected to the Cuban Baseball Hall of Fame in 1997, Nelson played six seasons for Almendares between 1952-59.
According to Who's Who in Cuban Baseball, 1878-1961, Nelson ranks eighth in Cuban League history with 44 career home runs and is tied for the most RBI in a single Cuban League season (57 in 1954-55). That same season, he led the league with 13 home runs.
In the 1953-53 season, Nelson (shown in this Sporting News archive photo that was up for auction by Lexibell Vintage Photos on eBay recently) was up fled the Cuban League in hitting with a .352 batting average.
In the majors, Nelson played for the Cardinals, Pirates, White Sox, St. Louis Browns and Indians during nine seasons between 1949-61,