John E. Elmore

Navy Captain, Contractor

John E. Elmore, 72, a retired Navy captain who worked for a defense contractor, died of complications from cancer Sept. 15 at Inova Fair Oaks Hospital. He lived in Oakton.

Capt. Elmore served in the Navy from 1953 to 1984. He had one tour of duty in the Korean War and four in Vietnam. He served on the Navy vessels Truxtun, Des Moines, Turner Joy and Francis Hammond. He retired from the Navy in 1984, having received two awards of the Navy Commendation Medal.

He then moved to Oakton and worked for Unisys, a defense contractor in Reston, until 1994.

Capt. Elmore, who was born in Indianapolis, graduated from Purdue University. He was known for his sense of humor.

Survivors include his wife of 49 years, Anne Elmore of Oakton; six children, Jeffrey Elmore of Lancaster, Calif., Leland Elmore of Huntington Beach, Calif., Robert Elmore of Scottsdale, Ariz., Jan Elmore of Annandale, Melissa Broderick of Dayton, Ohio, and Jennifer Elmore of Fairfax; and five grandchildren.

Jack Marks

Teacher, Activist

Jack Marks, 78, a mathematics teacher and community activist in Washington, died of cancer at Veterans Medical Center in Washington.

Mr. Marks, who had lived in the Washington area since 1979, was a man of many talents, supporting himself by tutoring college students in math. He had worked in aerospace engineering; taught high school; started tennis, table tennis and checkers clubs for youth; and agitated for better nutrition in homeless shelters.

He was born in Omaha and moved with his family to Los Angeles in 1935. He attended the University of California at Los Angeles and enlisted in the Army during World War II. After the war, he completed his bachelor's degree at UCLA and received a master's degree there in mathematics.

During the 1950s and early 1960s, Mr. Marks worked at the Naval Ordnance Center in Inyokern, Calif., and subsequently at Hughes Aircraft, Space Technology Labs, Litton Industries and at Northrop Corp. as assistant program manager for the Apollo space program. He was transferred to Cocoa Beach, Fla., and continued to work in aerospace engineering for Pan American World Airways at Patrick Air Force Base until 1968.

During space program cutbacks, he was laid off. He moved to East St. Louis, Ill., where he began teaching high school math, as well as night math classes at Belleville Area Community College. In 1979, he moved to the Washington area and became a math tutor for university students.

He founded the Youth Tennis League Inc. in 1968, a national nonprofit club whose board of directors included Billie Jean King and Arthur Ashe. He later started the Arlington Table Tennis Club and the Willie F. Ryan Checkers Club.

A fan of symphony music, he founded the Aficionados of the Arts, an arts appreciation group. He also founded the Socratic Method Society, a group that regularly published articles in local newspapers questioning public policy. He became an anti-smoking activist, writing articles and reporting violations of smoking in public places to the authorities.

Mr. Marks taught himself Spanish and considered running for local political office as Jacobo Jose Marks. During a brief period when he was homeless, he lobbied for better nutrition in shelters and against churches that refused to take him in.

His marriage to Barbara Marks ended in divorce. His marriage to Aminata Ndiaye was annulled.

Survivors include a daughter, Suzanne Marks of Atlanta; a son, Stephen Marks of Sebastian, Fla.; and a sister.

Margaret K. Dardarian

Pediatric Nurse

Margaret K. Dardarian, 71, a pediatric nurse, died Sept. 15 of bladder cancer at Casey House hospice in Rockville. She lived in Silver Spring.

She worked at the Washington Hospital Center for two years in the late 1960s before taking time off to raise her family. In 1984, she joined Pediatric Associates of Wheaton, where she was nursing supervisor until her retirement in 1999.

Mrs. Dardarian was a native of Providence, R.I., where she graduated from the Roger Williams School of Nursing. She also received a bachelor's degree in nursing from the University of Pennsylvania. She worked as a nurse in Rhode Island before moving to the Washington area in 1967.

She participated in various activities to honor her Armenian heritage. She was president of the women's guild of Soorp Khatch Armenian Apostolic Church in Bethesda and was director of the Soorp Khatch senior citizens' organization. She also was financial manager of Hamasdegh School in Bethesda.

Survivors include her husband of 37 years, Sahag Dardarian of Silver Spring; two children, Anne Dardarian of Silver Spring and Dr. Thomas Dardarian of Philadelphia; three sisters; and two granddaughters.