What did the O in David O. Selznick (1902-1965) stand for?

The O in David O. Selznick (1902-1965) stood for Oliver.

What was Said’s real name? Said's real name was H. H. Munro (1870-1916). The Scottish fiction writer and playwright was born in Burma and killed by a sniper in France during World War I.
How many times did Ralph Bellamy play the “other man” with whom Cary Grant had to compete for the heroine’s affections? Ralph Bellamy played the "other man" twice, in The Awful Truth (1937), where Irene Dunne was the woman; and in His Girl Friday (1940), where Rosalind Russell was the woman.
For how many years was Leni Riefenstahl imprisoned after World War II? The German director Leni Riefenstahl spent four years in a French detention camp after World War II for her activities as a Nazi filmmaker. Her last film was Tiefland, completed in 1954.
What was Bette Davis’s last film? Wicked Stepmother (1989) was Bette Davis's last film.
Who was the last viceroy of India? The last viceroy of India was not Lord Mountbatten. Louis Mountbatten (1900-1979) was India's last British viceroy, or governor general, from August 1947 to June 1948. Chakravarti Raj agopalachari (1879-1972) then served as…
What are the presidents carved on Mount Rushmore, South Dakota, meant to represent? The four 60-foot-high likenesses on Mount Rushmore, sculpted between 1925 and 1941, are meant to represent the following: George Washington, the nation's founding; Thomas Jefferson, its political philosophy; Abraham Lincoln, its preservation; and…