You're looking for Zone 6 Dealer 114 (at the time your car was built).. correct? 1969? If your delivering dealer still has the same ownership/location/name, AND if the Parts Distribution Warehouse location has not changed since 1969, then that Zone/Dealer would still exist and be current... but.. like most companies, GM changes it's structure and makeup periodically.
Note: Zone numbers changed when the supplying GM Parts Distribution Warehouse location changed for the region (and I suspect the region boundaries changed as well when that happened. The dealership that delivered my car, had it's 'Zone #' changed 3 times since 1969, as the Parts Distribution Warehouse location was changed from Birmingham (Zone 31), to Atlanta, then to Dallas, and lastly to Jackson MS (if I recall correctly). The zone number changed from 31 to 12 to 8 (again if I recall the zone numbers correctly).