William S. Mailliard, a California Republican who represented the San Francisco area in Congress for 21 years, died at Reston Hospital Center after a heart attack June 10, his 75th birthday.

A resident of Washington, he was stricken at Dulles International Airport en route to his family ranch in Mendocino County for a birthday celebration.

Mr. Mailliard served in the House of Representatives from 1953 until 1974, when he resigned to become ambassador to the Organization of American States, where he served until 1977. In Congress, he was the ranking Republican on the House Foreign Affairs Committee and a senior member of the Merchant Marine and Fisheries Committee.

He was born in Marin County, Calif., and graduated from Yale University. He served in the Navy during World War II. His naval service included duty as assistant naval attache at the U.S. Embassy in London and on the staff of the seventh amphibious force in the Pacific. He was awarded a Silver Star, the Legion of Merit and a Bronze Star. After the war, he served in the reserves and became a rear admiral.

Before his election to Congress, Mr. Mailliard was a California banker, an aide to California Gov. Earl Warren (R) and executive director of the California Academy of Sciences.

He was a former president of the United States Association of Former Members of Congress.

His marriage to Elizabeth Whinney ended in divorce.

Survivors include his wife, Millicent F. Mailliard of Washington; four children from his first marriage, William S. Mailliard Jr. of Petaluma, Calif., Antoinette Mailliard of San Francisco, Ward Mailliard of Watsonville, Calif., and Kristina Mailliard of Santa Rosa, Calif.; three children by his second marriage, Julia Ward Mailliard of Washington, Josephine Mailliard Fleming of Arlington and V. Leigh Mailliard of Rowayton, Conn.; and six grandchildren.

JOHN B. CLARK SR.

Insurance Broker

John B. Clark Sr., 66, an area insurance broker who was active in church, Rotary and athletic groups, died of kidney failure June 10 at Penninsula General Hospital in Salisbury, Md.

In 1952, he helped found what is now the McLaughlin Co. of Washington. He was a company vice president at the time of his death.

Mr. Clark had been a member of Geneva Presbyterian Church in Potomac since 1962, and the Sixth Presbyterian Church of Washington before that. At both churches, he had served as ruling elder, controller, Sunday School teacher and member of the board of deacons. He also had served on the finance committee and as a trustee of the Presbyterian Home.

He had served as a district governor of Rotary International and had been a member of the Potomac Rotary since 1969. He had been a commissioner, director and treasurer of the Beltway Football League and a founder of the Farmland Athletic Association.

Mr. Clark, a former Rockville resident who had lived in Ocean City, Md., since 1988, was a native of Washington. He was a graduate of Coolidge High School and attended Georgetown University. He served with the Army in Europe during World War II.

His wife, the former Adeline Baker, whom he married in 1951, died in 1976. Survivors include a son, John Jr., of Ocean City; two daughters, Ann Clark of Mooresville, N.C., and Grace Matthews of Culpeper; two brothers, William L., of Rockville, and Thaddeus, of Boca Raton, Fla.; two sisters, Jeanne Mulvaney of McLean, and Martha Clark of Chevy Chase; and a grandson.

NATHAN BERNSTEIN

Merchant

Nathan Bernstein, 91, a retired merchant who had operated grocery and liquor stores in Southwest Washington, died of congestive heart failure June 9 at Holy Cross Hospital.

Mr. Bernstein, who lived in Rockville, was born in Kreinovitch, Russia. During World War I, he was conscripted into the German Army as a translator. He came to the United States in 1922 and lived in New York before moving to Washington in 1936.

In Southwest Washington, he operated a series of stores, all called Bernstein's Reliable Market. He also had developed residential real estate in Northeast Washington and commercial real estate in Southwest Washington.

In 1970 Mr. Bernstein retired and moved to Miami. He worked there as a volunteer counselor for the Florida Parole and Probation Department, counseling juvenile delinquents and drug addicts. Three years ago he returned to the Washington area.

He had been a Democratic Party precinct chairman in Southwest Washington.

Survivors include his wife of 61 years, Sonia Bernstein of Rockville; two sons, Irwin Bernstein of Silver Spring and Jerome Bernstein of Washington; five grandchildren; and two great-grandchildren.

JAMES R. PITTARD

Salesman

James Roland Pittard, 72, a retired used car dealer and former wholesale bakery goods salesman who was active in church groups, died of leukemia June 11 at Fairfax Hospital. He lived in McLean.

Mr. Pittard was a salesman with Foley & Gaylor, a local distributorship for Pepperidge Farm products, for 25 years until retiring in 1973. He then was an independent used car dealer in McLean until retiring again in 1978.

He had served as deacon and Sunday school teacher at both Westover Baptist Church in Arlington and then National Gardens Baptist Church in Falls Church.

Mr. Pittard, who was born in Akron, Ohio, came here in 1938. He worked in sales and for construction concerns before joining Foley & Gaylor.

Survivors include his wife of 49 years, Helen, of McLean; four sons, Roger B., of Richmond, Eric D., of Sanford, N.C., Clyde D., of Herndon, and Karl F., of Groton, Conn.; a daughter, Alice Lucas of Temple Hills; two brothers, Richard and Phil, both of Manassas; a sister, Rowena Hoopes of Phoenix; and 14 grandchildren.

J. ARTHUR HARRIS

Government Statistician

J. Arthur Harris, 80, a retired government statistician who served in the vestry of St. Clement's Episcopal Church in Alexandria, died June 9 at George Washington University Hospital. He had pneumonia.

He worked for the government for 39 years before retiring in 1974 from the Air Force Department. Other agencies he worked for included the Veterans Administration and the Defense Department. He began his career with the Works Progress Administration in Minnesota.

Mr. Harris, who was born in New York and came here in the 1940s, lived at Goodwin House in Alexandria. He was a past president of Goodwin House's residents council.

He served with the Navy in the Pacific during World War II, and later retired from the reserves as a lieutenant commander.

His wife, the former Helen Ruth Street, whom he married in 1934, died in 1985. Survivors include a son, James Jr., of Gaithersburg; a daughter, Nancy Ruth Curtis of Valdosta, Ga.; and three grandchildren.

VIRGIL R. HASSLER

Editor

Virgil R. Hassler, 83, retired editor of Rural Lines, the monthly magazine of the Rural Electrification Administration, died of lymphoma June 6 at his home in Arlington.

Mr. Hassler was born in Oklahoma and was reared in Texas City, Tex. He graduated from Northwestern University, where he was a member of Phi Beta Kappa, and did graduate work in economics at American University.

In 1939, he moved to Washington and began working for the Department of Agriculture. He retired from its Rural Electrification Administration in 1972.

During World War II he served in the Navy. He was a lieutenant commander in the reserves after the war.

He was a member of Central United Methodist Church in Arlington.

Survivors include his wife of 56 years, Gwen Hassler of Arlington; two children, Tom Hassler of Williamsburg and Mary McConnell of Tyrone, Ga.; five grandchildren; and one great-grandson.

RUTH H. ARNOLD

Secretary

Ruth Hooker Arnold, 74, a secretary with the American Psychiatric Association for 15 years before retiring in 1977, died of cardiopulmonary arrest June 4 at Alexandria Hospital. She had cancer.

In retirement she had done volunteer work at Mount Vernon Hospital.

Mrs. Arnold, who lived in Alexandria, was born in Red Cloud, Neb. She graduated from the University of Colorado. She had been a secretary at Boulder, Colo., Port Hueneme, Calif. and State College, Pa., before moving to the Washington area in 1962.

Survivors include her husband, Christian K. Arnold of Alexandria; two sons, Christopher L. Arnold of Vienna and Andrew H. Arnold of Johannesburg; a sister, Rita Coyer of Golden, Colo.; and a brother, Dean Hooker of Chiefland, Fla.

CAROL 'SOPHIE' EMAMI

Management Analyst

Carol A. "Sophie" Emami, 48, a management analyst with the Defense Contract Audit Agency, died of leukemia June 10 at the Hospice of Northern Virginia.

Mrs. Emami, who lived in Fairfax, was born in Washington. She graduated from Montgomery Blair High School in Silver Spring.

She began her civil service career shortly after high school with the Department of the Army and later worked for the Department of Energy. She had been with the Defense Contract Audit Agency for the last five years.

Survivors include her husband of 29 years, Houshang "John" Emami of Fairfax; a daughter, Fifi Emami Smith of Columbia, S.C.; her mother, Camelia Abalan Mantua of Silver Spring; and a sister, Elaine Lipford of Edmonton, Alberta.

ROBERT E. HAMANN

Accountant

Robert E. Hamann, 79, a native Washingtonian and a retired accountant, died May 27 at a hospital in Orlando, Fla., after a heart attack.

Mr. Hamann graduated from Eastern High School. He worked for the accounting firm of Ernst & Ernst in Washington until moving to Orlando in 1957. There he worked for the Orlando Utilities Commission until retiring in 1966.

His wife, Irene Amey Hamann, died in 1982. Survivors include a daughter, Carol Joan Moore of Orlando, and a brother, Charles W. Hamann of Rockville.