From BR Bullpen
Laurence Henry Rennert Jr. (Dutch)
- Height 5' 9", Weight 175 lb.
 Biographical Information
Dutch Rennert served a long minor league apprenticeship. He was an umpire in the Alabama-Florida League (1957), Pioneer League (1958), Three-I League (1959-1960), Southern Association (1961), Texas League (1962-1964), and Pacific Coast League (1965-1973).