- "And one more thing. Don't you contact me again, ever. From now on, you deal with Turnbull."
- ―Patrick Geary
Turnbull was an associate of the Corleone family.
Turnbull worked in the offices of Senator Patrick Geary of Nevada, though he was known as an associate and possible informant for the Corleone family.
During negotiations to gain a hotel in Nevada, owned by Meyer Klingman, Turnbull was approached by Tom Hagen, who arranged a meeting with Senator Geary concerning the gaming licence.