 It was formed in the winter of 1924 and was the direct successor league of the DuPage County Conference that expired the previous year.Old DuPage County members Hinsdale, Glenbard, York, Downers Grove, and West Chicago, joined with Maine to form a new league.In 1928, Riverside (now Riverside-Brookfield) left the disintegrating old Suburban League and joined the West Suburban League.