Sharon Louise Stack

Customer Service Representative

Sharon Louise Stack, 48, who worked as a customer service representative for Washington area courier services for 15 years, died Aug. 24 at her home in Ronda, N.C.

The cause of death is pending autopsy results, according to Capt. Steve Cabe of the Wilkes County Sheriff's Department.

Miss Stack was born in Washington and grew up in Bladensburg. She attended Bladensburg High School.

Until about five years ago, Miss Stack worked with courier services in Washington and Silver Spring. She answered calls and referred them to dispatchers for couriers to distribute packages.

She moved to North Carolina five years ago.

Survivors include her mother, Irene Stack of Silver Spring, and her father, Carl Stack of Swedesboro, N.J.; four sisters, Peggy Stack of Shady Side, Donna Helenski of Columbia, Carleen Stack of Hyattsville and Penny Meador of Aspen Hill; and a brother, Daniel Stack of Aspen Hill.

Alfred Leroy Mowery

Nuclear Physicist

Alfred Leroy Mowery, 70, a nuclear physicist with the Department of Energy, died Aug. 26 at a hospital in Houston. He had a stroke, following various complications from cancer-related surgery last year.

Dr. Mowery began his career in 1961 with the Los Alamos National Laboratory in New Mexico. In 1963, he joined Westinghouse Electric Co. in Pittsburgh, where he designed nuclear engines for rockets.

Beginning in 1970, he worked for the Atomic Energy Commission, first in Cleveland and, starting the next year, in Washington. His specialty was designing nuclear power systems for use in space vehicles.

After the AEC was absorbed by the Department of Energy in 1975, Dr. Mowery worked on nuclear safety and risk assessment programs for the Galileo and Ulysses satellite probes. From 1977 to 1980, he was on special assignment with the State Department, developing policies for nuclear nonproliferation.

He continued to work at the Department of Energy, in both its Germantown and Washington locations, until he retired in 1992. He was cited for his contributions to the Galileo and Voyager programs and received a patent for a device to help convert nuclear energy to electrical current in spacecraft.

After his retirement, he worked on several projects for the American Nuclear Society, an organization devoted to the safe use of nuclear technology. Along with another scientist, Dr. Mowery developed a design for a compact nuclear rocket, which they presented at a meeting of the American Institute of Aeronautics and Astronautics.

He was born in Augusta, Ga., and graduated from Duke University in 1955. He received a master's degree in nuclear engineering and a doctorate in engineering physics, both from North Carolina State University.

He lived in Potomac before moving to Hilton Head Island, S.C., in 1992. He moved to Las Vegas in 1999.

Survivors include his wife of 49 years, Mary Moore Mullin Mowery of Las Vegas; three children, Mark Wayland Mowery of Centreville and Alfred Leighton Mowery and Cynthia Lucretia Mowery Philistine, both of Houston; a sister; and four grandchildren.

Nicholas Sabalos

Law of the Sea Expert

Retired Rear Adm. Nicholas Sabalos, 74, who for 30 years was an attorney in the Navy's Judge Advocate General's Corps and was regarded as an expert on the law of the sea, died of complications from cancer Aug. 27 at Virginia Hospital Center-Arlington. He lived in Springfield.

Adm. Sabalos briefed national security advisers at the White House, the Joint Chiefs of Staff at the Pentagon and embassies around the world. He had a key role in developing the Law of the Sea Treaty. Adm. Sabalos was stationed overseas in Puerto Rico, the Philippines and Japan. He served in Vietnam, in combat zones, from 1966 through 1968, and served as a military judge during the 1960s and 1970s.

Adm. Sabalos, a native of New York City, earned a bachelor's degree from New York City College in 1949 and a law degree from St. John's University in New York in 1951.

He worked as a Pinkerton detective protecting President Harry S. Truman from 1950 until 1951, when he joined the JAG Corps. He retired in 1981.

His military awards included the Legion of Merit and the British Victoria Cross.

Survivors include his wife of 52 years, Dr. Dolores Marie Sabalos of Springfield; three children, retired Naval Cmdr. Nicholas Sabalos Jr. of Springfield, Pamela Sabalos of Shallotte, N.C., and Nina Crissey of Vienna; two brothers; and two grandchildren.