Mason St, Avalon MO Residents 21960 Mason St, Avalon, MO 64601-8139 Alternative address: 21960 Mason St, Chillicothe, MO 64601-8139 Who has lived here ResidentPhone Number Elv*** Ric***660-***-**** Tam***660-***-**** Learn more 21984 Mason St, Avalon, MO 64601-8139 Alternative address: 21984 Mason St, Chillicothe, MO 64601-8139 Who has lived here Resident Ker*** Learn more