For those interested in writing Gary, here is the address:
Gary Yarbrough 09883-016 US Penitentiary High PO Box 7000 Florence, CO 81226
To send him commissary money, it needs to be a postal money with Gary's name and registry number on the money order, and send to this address:
Federal Bureau of Prisons Gary Yarbrough 09883-016 Post Office Box 474701 Des Moines, Iowa 50947-0001
