Derrick Leather: Sound Editor (Sound)1972-06-01

Derrick Leather: Sound Mixer (Sound)1977-08-31

Derrick Leather: Sound Mixer (Sound)1973-01-01

Derrick Leather: Boom Operator (Sound)1970-07-22

Derrick Leather: Production Sound Mixer (Sound)1979-05-25

Derrick Leather: Sound (Sound)1979-01-01