Emily Rowe Denny, 74, a retired teacher in Queen Anne's County, Md., who was active in community affairs, died Thursday at Easton Memorial Hospital following a heart attack.

Mrs. Denny taught English for a short time during the mid-1920s at the old Stevensville High School, then returned to teaching in the early 1940s. She taught at Queen Anne's County High School until retiring in 1968.

She was a member of the board of the Queen Anne's County Library and the Queen Anne's County Historical Society. She also belonged to the Kent Island Heritage Society and the United Episcopal Church in Stevensville.

Mrs. Denny was the author of a number of works, including a 1959 booklet, "The Indians of Kent Island."

Mrs. Denny was born on a farm in Barclay, Md. She was a graduate of the University of Delaware.

Her husband, T. Walter Denny, a Stevensville farmer, died in 1975.

Survivors include a daughter, Joan D. Searles, of Unionville, Pa.; a son, Walter T., of Bowie; two sisters, Sara S. Rowe, of Centreville, Md., and Amanda R. Robison, of Greenwood, Ind., and six grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Emily Rowe Denny Literary fund, in care of the Queen Anne's Dountry Board of Education, county office building.