ChadimaFAIRFAX — An open house noting the 50th wedding anniversary of Mr. and Mrs. G. Milton Chadima will be held next Sunday from 4 to 7 p.m. at Ponderosa Ballroom, Walford. The couple’s children and grandchildren will host the event.Their children are: Lenita McCal-lum, Palos Verdes Estates, Calif.; Darla Chadima Phillips, Santa Cruz, Calif; and George W. Chadima, Fairfax.The former Lillian Swenka and Mr. Chadima were married Aug. 26, 1936, in Ely. They have eight grandchildren.