Notes on the RBBB Electrical Generator wagons:
Wagons No 109-110- 111- 112 
Wagon # 109 Carried Two cummins Diesels
Wagon # 110-111 carried  GM Diesels  and had the controll panels in the  head end of the wagons
These two wagons were cross-wired  so that all output for the Big Top came out of Wagon 112
Only three generators were used at one time with the fourth as a standby.,  These could be reotated at the main control panel in wagon 112   Each Generator produced a three-phase circurtery as shown on the switch controll in back of each generator  
Fule tanks for the G. M's  (Wagons 110- 111-112 were located int the frame  under the wagon
(notes from the Lucky Allen Collection)

supplemet to Power wagons RBBB 109, 110, 111, 112

1. with the interst in the RBBB power wagons    here are a few details  that one could add to your wagons