Dr. Earl Emmet Lackey, 98, a retired teacher and civillian employee of the Department of the army, died March 7 at Suburban Hospital. He lived in College Park.

An authority on geography and agriculture, Dr. Lackey had joined the Army Environmental Research headquarters here in 1950.

When the headquarters were moved to Natick, Mass, in 1953, he also moved there and continued to work for the Army until retiring in 1965 at the age of 87. He then returned to the Washington area and had lived here since then.

Born near Findlay, Ohio, Dr. Lackey spent many of his years in Nebraska, where he graduated from Peru State College and earned a master's degree from the University of Nebraska.

He taught in public schools, became a supertintendent of schools and served briefly as a YMCA teacher in France in World War I.

Dr. Lackey taught in the department of geography at the University of Nebraska from 1924 until retiring in 1948 at the age of 70. He had taken time out in the early 1930s to earn a doctorate in geography from Columbia University.

After retirement, he was recalled to teach at the University of Nebraska and then at the University of Tennessee.

It was after he came to Washington to be near his grandchildren, that he was asked to work for the Army because of his gegraphic background.

Dr. Lackey was the author of numerous articles in the fields of geography and weather. He also had been a member of many organizations in those fields.

He is survived by a son, Paul Gordon Lackey, of Falls Church; two daughters, Neva Pursell, of Silver Spring, and Frances Bailey, of Vista, Calif.; a sister, who lives in the state of Washington, and six grandchildren.