Clifton Truman Daniel, the eldest of President Harry S and Bess Truman's four grandchildren, was married to Polly Bennett Saturday in St. James Episcopal Church in Wilmington, N.C., where they live. The young couple were married on the wedding anniversary of Harry and Bess Truman, who married in 1919 in Independence, Mo.

Daniel is the son of former New York Times managing editor E. Clifton Daniel Jr. and author Margaret Truman Daniel. Daniel's three brothers, William, Harrison and Thomas, served as ushers. Bennett is the daughter of Kawathen K. Grubbs of Winston-Salem, N.C., and the late Sam Uhl Bennett.

Following a family tradition that goes back to his grandfather the president, Daniel, 29, is a reporter. He works for the Wilmington Morning Star. Truman once worked for the Kansas City Star in the early 1900s. Daniel is a graduate of the University of North Carolina, Chapel Hill. Bennett, 27, is a free-lance artist and jewelry designer.

Plans for the Reagan Library

Now that the Stanford University Board of Trustees has approved the plan, it seems construction can begin on the $30 million Ronald Reagan Presidential Library there. There was some criticism that the Reagan Library would give the school too much of a conservative tilt, since the Hoover Institute is already at the Palo Alto, Calif., campus. Much of the opposition was because the library would be affiliated with a public affairs think tank. That idea has been dropped, and the plan now is for the conservative think tank to be elsewhere in the San Francisco area and to be independent of any university.

The 115,000-square-foot library will have about 60,000 shelf feet of archives and will include a 300-seat auditorium, a conference room, a kitchen, a presidental suite and an exhibit area. It will not be a museum. Most presidential objects will be at a museum at Reagan's alma mater, Eureka College in Illinois. The trustees of the Reagan Foundation making plans for the library include a number of Reagan's personal friends: Attorney General Edwin Meese, former White House aide Michael Deaver, former interior secretary William Clark, former attorney general William French Smith and Mary Jane Wick.

Out and About

The 1931 Royale Berline de Voyage Bugatti automobile sold for a stiff $45,000 when it was new. At an auction in Reno, Nev., this weekend, Jerry J. Moore, a Houston shopping center magnate, paid $6.5 million for the 22-foot yellow and black limousine and said he was prepared to go as high as $10 million to get it. The classic car, one of only six built, set the auction record for an automobile, but the auctioneers had hoped it would bring $14 million. It's an expensive toy to add to Moore's collection of 26 Duesenbergs, 20 Ferraris and 15 V-16 Cadillacs . . .

Author Gwen Davis was in town recently promoting her steamy new novel "Silk Lady," which has a number of Washington scenes. It can't be possible that women discussed such things over lunch at the now-defunct Sans Souci restaurant. If there seemed to be a shade of similarity between the novel's story of the wealthy older man keeping the beautiful young women and the tragic Alfred Bloomingdale-Vicki Morgan case, Davis was being careful. "The Bloomingdale case was very public and got a lot of press," she said. "As a writer I can't deny that it is in my memory bank." Davis never met Morgan, but she did know Marvin Pancoast, the man convicted of killing Morgan. "He kept trying to get me to meet Vicki, saying she had a story to tell" . . .

Things have gone well for little Opie since his days on "The Andy Griffith Show." Tri-Star will be paying Ron Howard $5 million to direct two movies, plus profit shares. Howard and producer Brian Grazer's Imagine Films Entertainment goes public the middle of next month, and already prospective investors are calling to ask about "Opie" and "Richie Cunningham" stock . . .

The Beach Boys will be celebrating their 25th anniversary in show business on the Fourth of July. Although they won't be on the Mall this year, where military bands and patriotic music will dominate, they will be playing in Austin, Tex., at Farm Aid II and will then fly to New York for a concert aboard the battleship USS Iowa in New York Harbor . . . CAPTION: Picture, Jerry Moore after his winning bid $6.5 million for a Bugatti Royale. ASSOCIATED PRESS