Elizabeth Beal Devlin, 67, a sixth-generation Washingtonian who worked for the Episcopal Center for Children here and then became a volunteer aide at the Washington Cathedral, died Oct. 16 at Georgetown University Hospital after a heart attack.

Mrs. Devlin was a graduate of the old Central High School and attended the Temple Business School. In the 1930s, she worked briefly for Sen. Henry F. Ashurst (D.-Ariz.) and then was a secretary at the Home Owners Loan Corp. until her marriage in 1936 to Frank Cleland Devlin.

The couple lived in Silver Spring for many years and then returned to the District.

About 1970, Mrs. Devlin became a secretary at the Episcopal Center for Children. She remained there until about 1976, when she became a volunteer at the Washington Cathedral.

She was a member of St. Margaret's Episcopal Church.

In addition to her husband, of Washington, survivors include two sons, Thomas Beal Devlin of New York City and Frank Cleland Devlin Jr. of Washington; a brother, Walter Henry Beal Jr. of Washington; a sister, Anne Beal Peters of Bethesda, and one grandchild.

The family suggests that expressions of sympathy be in the form of contributions in Mrs. Devlin's memory to the Washington Cathedral.