Ed McNevin launched the JPL softball A, B, and C leagues in the late 1960s or early 1970s, with financial support from the now defunct JPL Employees Recreation Club (ERC). Ed managed all of the JPL softball leagues singlehandedly through 1986, at which time the program had expanded to include nearly 50 teams, and this was more than any one person could manage. Throughout his career at JPL, Ed remained an active participant in various JPL softball leagues until his untimely death in 1997.
Someone should volunteer to write a better bio of Ed McNevin, ideally with picture(s), to appear here.