ROGER Q. WILLIAMS and CAPT. LEWIS A. YANCEY, president and vicepresident, respectively, of the Airvia Transportation Company, have resigned. FRANK H. RUSSELL, Garden Citv, L. L, president ; CHANCE VOUGHT, New York City; J. DON ALEXANDER, Colorado Springs ; WALTER C. DAVIS, Richmond, Ind. ; E. J. EVANS, Detroit ; HARRIS AL HANSHUE, and LLOYD STEARMAN, have been elected to the board of directors of the Alanufacturers’ Aircraft Association.