Namesakes
Notable Actors and Entertainers:
1 actor
Jeff MacKay 1948-2008 
Notable Writers:
1 author
Jeffery Deaver 1950-
Olympic Medalists:
1 gold, 1 silver, 1 silver/gold
(silver/gold) Larry Black (a.k.a. Jeffery) 1972 200 m; 4x100 m relay
(gold) Adam Everett (a.k.a. Jeffery) 2000 baseball
(silver) Jeff Demps 2012 4x100 m relay