Milestones, Jul. 26, 1948

Divorced. George O'Brien, 48. daredevil Western cinemactor and hero of Zane Grey roles; by Marguerite Churchill O'Brien, 37, auburn-haired stage & screen actress; after 15 years of marriage, two children; in Los Angeles.

Died. Dr. George William Lewis, 66, longtime research director for the National Advisory Committee for Aeronautics (1924-47); of a heart ailment; in Lake Winola, Pa. As head of the world's greatest aeronautical research agency (serving U.S. plane builders and the armed forces), Dr. Lewis fathered major experimental laboratories at Langley Field. Va., Cleveland, and Moffett Field, Calif., guided a spate...