Ill go out on a limb here and say there really wasnt much, if any, midget racing in the Southern Tier until Shangri-la opened in 46. And even then, midgets were only special shows.
Other than a few jalopy shows at places like Bennetts Airport (on Upper Front Street) and Morris Farm (Conklin Ave), auto racing in the Southern Tier in the 20s, 30s and 40s consisted mostly of big car (sprint car) racing, not midgets. Races were held once a year at Stow Park in the 20s, then at the Tioga and Broome County Fairs in the 30s . Campville opened in 37 but ran big cars on an every-other-Sunday schedule. No midgets. There may have been a midget show or two at the old Kirkwood Speedway, in Broome County, in the late 30s, early 40s but thats about it.
Youd have to go down to the NYC/Long Island area to find a solid two-three night per week midget circuit. The closest midget tracks to the Southern Tier before the War were up in the Syracuse area or down around Scranton/Wilkes-Barre.