A forestry worker's daughter with no formal training as a governess will rear the child Prince Charles and Diana, princess of Wales, are expecting in two months, Buckingham Palace said yesterday.

Barbara Barnes, 39, who wears no uniform and likes being called by her first name, has been selected by the 33-year-old heir to the British throne and his 20-year-old wife, a palace spokesman said. There was no word when she will move to the royal couple's home in Tetbury, Gloucestershire, west of London.

"I am delighted and honored to be given this appointment," said Barnes, currently a governess at the home of Lady Anne Tennant, lady-in-waiting to Princess Margaret, sister of Queen Elizabeth II.

"I do not see any different problems in bringing up a royal baby," Barnes said. "I treat all children as individuals."

Nancy Reagan toured a drug rehabilitation project in Chicago yesterday and warmly embraced a dozen inmates, praising them for taking "the first big step" in fighting the drug habit.

Mrs. Reagan toured Gateway House, a recovery program for addicts organized in 1968 in a seedy Northwest Chicago neighborhood, and spent 30 minutes talking with inmates and former inmates.

While her husband met with reporters downtown, Mrs. Reagan sought advice from the inmates, who ranged in age from 15 to 31, and pledged to do everything she can to educate the public about the problems of addicts.

"You've made the first big step," Mrs. Reagan told the gathering. "It can be a wonderful life out there. We only make it once. I am very proud of you and I know you will do it."

"I married my wife today," Edward Lozansky said yesterday afternoon, describing a ceremony in the U.S. Capitol in which Sen. Robert Dole (R.-Kan.) and Rep. Jack Kemp (R.-N.Y.) stood as his groomsmen.

Lozansky, 39 and a professor of mathematics at American University, is a Soviet emigre. In 1971, he married Tatyana Yershov, daughter of one of the top generals in the Red Army in Moscow. Lozansky became increasingly disillusioned with the Soviet system and in 1976 decided to leave Moscow. His father-in-law persuaded him that in order to obtain an exit visa, he must first divorce Tatyana. He promised it was only a technicality.

Lozansky left his wife and came to America. That was the last time he say Tatyana, now 29, and Tanya, his 10-year-old daughter.

Yesterday, as Lozansky was remarried by proxy, his wife and a group of four other Soviet citizens in Moscow who have not been allowed to join their spouses in other countries began a hunger strike in protest.

"I now expect Bob Dole and Jack Kemp to walk behind the scenes to take care of the diplomatic work," Lozansky said. "The Soviets won't talk to me. They consider me the enemy."

Actor Sidney Poitier plans to visit Mouth of Wilson, a village in southwestern Virginia, May 22 to deliver a commencement address to 20 graduating seniors at Oak Hill Academy.

According to Robert Isner, president of the academy, Poitier is related to one of the students at the school.

The postman always rings twice.

Cartoonist Ben Sargent, of the Austin (Tex.) American-Statesman, did get the $1,000 for his Pulitzer Prize, but he didn't get the certificate to go with it.

"The mailman brought the award," Sargent said, "which is a certificate, and it had $1.50 postage due on it."

His wife, Kathy, didn't have any cash in the house, so the mailman had to take it back. "He was real chagrined about it," Sargent said, "and apologized and promised to bring it back tomorrow."