Born. To Phumiphon Adundet (Rama IX), 24, Massachusetts-born, jazz-loving King of Siam, and Queen Sirikit, 20, daughter of a Siamese diplomat: their second child, first son and crown prince. The birth of an heir to the Thai throne called for a booming 21-gun salute, traditional conch-shell music, and the proclamation of a national holiday.

Sued for Divorce. By Donald W. Douglas, 60, pioneer plane builder and president of the Douglas Aircraft Co.: Charlotte Ogg Douglas, 60, who, he charged, had caused him grievous mental suffering, extreme nervousness, mental anguish, embarrassment and humiliation; after 36 years of marriage, five children; in Los Angeles.

Divorced. The Rev. William H. Alexander, 37, strapping, red-haired chaplain of the Republican National Committee (the first to hold the office), who is on leave of absence from Oklahoma City's oil-rich First Christian Church; by Mrs. Charlsie Alexander, thirtyish, who charged that he treated her more like "a servant than a wife and companion"; after 17 years of marriage, three children. Big (6 ft. 2 in.), handsome, a born showman (he was once a nightclub M.C.) and a spellbinding speaker who makes from five to eight lecture jaunts a week in his own plane, earned a tidy $40,000 a year, he deserted the Democrats in 1950, ran unsuccessfully as the G.O.P. nominee for the U.S. Senate against Mike Monroney, appeared at Chicago this month to address the Republican Convention.

Died. Maria Eva Duarte de Peron, 33, co-ruler of Argentina; of cancer; in Buenos Aires (see THE HEMISPHERE).

Died. Senator Brien McMahon, 48, congressional watchdog of the atomic energy program, who received 16 first ballot votes at the Democratic Convention as Connecticut's favorite son candidate for the presidency; of cancer; in Washington. A Yale Law School graduate (1927) and a protege of Connecticut's shrewd old Boss Homer Cummings, 88, he was appointed Assistant U.S. Attorney General when he was 33, was first elected to the Senate in 1944. After the atom bomb was dropped over Hiroshima, he crusaded successfully for civilian control of the atomic energy program (now headed by his onetime law partner, Gordon Dean), since 1946 headed the joint Senate-House atomic energy committee.

Died. Lammot du Pont, 71, onetime head of the U.S.'s most famed family industry, E. I. du Pont de Nemours & Co., and board chairman (1929-37) of the General Motors Corp.; of heart disease; in New London, Conn. Great-grandson of Eleuthere Irenee du Pont, who founded the original powder mill on the banks of the Brandywine in 1802. he was president from 1926 to 1940, succeeding his older brothers, Pierre, 82, and Irenee, 75. During the depression he launched the company on a program of research into basic science, announced: "There are times when it is more important to spend money on research than to pay dividends." Out of Du Font's research came synthetic rubber, nylon, and the company's part in the development of the atomic bomb.

Died. Frank J. Sensenbrenner, 87, onetime postal clerk who became president and chairman of the board of the Kimberly-Clark paper manufacturing corporation (first to develop Kleenex, Kotex, and a special ground-wood paper for rotogravure printing); in Neenah, Wis.

Died. Charles Townsend ("Copey") Copeland, 92, Boylston professor emeritus of rhetoric and oratory at Harvard University, who taught three generations of Harvard men to write by reading aloud to them; in Belmont, Mass. A shrunken little man, with a crusty manner and an actor's sense of staging, Copey retired in 1928 after 35 years on the Harvard faculty, emerged once a year to read to the undergaduates. One year, when he found them unfamiliar with Henry Esmond and Gulliver's Travels, Copey moaned: "Gentlemen, I pray for you."

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