Edward D. Thalmann

Physician, Navy Captain

Edward D. Thalmann, 59, a physician and retired Navy captain who contributed to the prevention of decompression sickness -- the bends -- in underwater divers, died July 24 at his home in Durham, N.C. He had congestive heart failure.

Dr. Thalmann specialized in physiology and hyperbaric, or high-pressure, medicine.

Soon after joining the Navy in the early 1970s, he developed a mathematical formula -- known as the Thalmann Algorithm -- to predict the effect of pressures on divers, based on the ability of human tissues to absorb and release gases.

That research helped replace established procedures more hazardous to divers.

With his new formula, he supervised hundreds of experimental dives to develop and verify a new set of time and depth limits. His work increased the operational capabilities of military divers, such as Navy SEAL teams and rescue and salvage divers.

Dr. Thalmann also helped develop protocols to protect U.S. astronauts when they leave the protective environment of the International Space Station for the lower atmospheric pressure of their space suits.

His final active-duty assignment, in 1993, was at the Naval Medical Research Institute in Bethesda as head of the diving medicine department. He also was director of decompression research programs at the institute.

His military decorations included the Legion of Merit.

Edward DeForest Thalmann was a native of Jersey City, N.J., a 1966 graduate of Rensselaer Polytechnic Institute and a 1970 graduate of Georgetown University medical school.

Since 1994, he had been an assistant clinical professor in anesthesiology at Duke University's Center for Hyperbaric Medicine and Environmental Physiology. He was also assistant clinical professor of family and community medicine at Duke.

His marriage to Brenda Thalmann ended in divorce.

Survivors include two daughters, Katherine Thalmann and Amanda Thalmann, both of Chapel Hill, N.C.; his father, Edward J. Thalmann of Whiting, N.J.; and a sister.

Daniel Herbert Hanscom

Administrative Law Judge

Daniel Herbert Hanscom, 87, former chief administrative law judge for the Federal Trade Commission, died of acute arterial stenosis July 5 at the Chester River Hospital Center in Chestertown, Md.

Mr. Hanscom worked for the FTC from 1956 until 1977. His most famous decision found that Sears, Roebuck & Co. used false and deceptive advertising when it claimed in pre-1975 ads that consumers did not have to rinse or scrape dishes before putting them in their dishwashers.

Mr. Hanscom was born in Chicago, attended City College of New York and earned a bachelor's degree and then a law degree from Northwestern University in 1942.

He was an aviator in the Navy from 1942 to 1952, serving in the Pacific during World War II. He then served in the Judge Advocate General's office in Korea and in Falls Church for four more years.

He was a member of Lakewood Country Club in Rockville. He was a Potomac resident until May 2004.

His wife of 57 years, Margaret Elizabeth Smith Hanscom, died in 2000.

Survivors include five children, Barbara Gagnon of San Francisco, Deborah Hanscom of Ottawa, Michael Hanscom of Chestertown, Constance Hanscom of Fremantle, Australia, and Stephanie Bassin of Dallas; and 13 grandchildren.

Judith P. Peterman

Smithsonian Volunteer

Judith Pierce Peterman, 73, who did volunteer work at the Smithsonian Institution's information desk from the mid-1980s to the late 1990s, died July 26 at Shady Grove Adventist Hospital in Rockville after a stroke.

Mrs. Peterman, a Derwood resident, was a Dallas native and an American history graduate of Texas Tech University.

She was a receptionist at a law firm in Kentucky and settled in the Washington area in 1982.

Her marriage to Horton Russell ended in divorce. A daughter from that marriage, Linda Russell, died in 2001.

Survivors include her husband of 19 years, Orren L. Peterman of Derwood; a son from the first marriage, David Russell of Fayetteville, N.C.; and five grandchildren.