Eugene deBor, 84, a former officer of the Royal Hungarian Army and a retired cartographer for the old Army Map Service, died of cancer Friday at his home in Brookmont, Md.

Mr. deBor was born in Hungary. He was educated at the Austro-Hungarian Artillery Officers School at Traiskirchen, Austria, and then served in the Royal Hungarian Army during World War I. He later was promoted to general and, after commanding combat troops during World War II, achieved the rank of lieutenant field marshal.

Before coming to the United States in 1951, Mr. deBor had been a British Army prisoner of war and worked as a clerk for the U.S. Army in southern Germany.

Mr. deBor was a cartographer and mathematician for private firms in Richmond before moving to this area in 1952. He joined the Army Map Service, now part of the Defense Mapping Agency, in 1967 and retired in 1970 at the age of 75. He has received an award for his superior performance. 1

Following his retirement Mr. deBor took an active interest in American-Hungarian affairs and studied military and world history. He was active in the American Hungarian Federation and a member of the Hungarian Reform Church.

Survivors include his wife, Clara Revesz deBor; a son, Eugene deBor Jr. of Garrett Park; four grandsons and one great-granddaugther.