Dorothy Helen McClure Keller, a registered nurse, died Sunday of a heart attack at Greater Baltimore Medical Center. She was 57.

Services for Mrs. Keller will be held at noon tomorrow at Valley Baptist Church, 1401 York Road, Timonium.

She had been a nurse at Stella Maris Hospice for the past nine years.

L Previously, she worked in the offices of several physicians.

A lifelong resident of the Baltimore area, she married Dr. Paul S. Keller in 1956. They made their home in Lutherville.

Mrs. Keller was a 1956 graduate of the University of Maryland School of Nursing and was a member of its alumni group.

She was a member of Valley Baptist Church and an auxiliary member of Gideons International.

Mrs. Keller was fond of flowers and had a large collection of pottery cows, but her main interest, said her daughter, Linda Maddox, "was caring for other people."

She is survived by her husband; two daughters, Linda Maddox and Susan Bartholme, both of Lutherville; a son, Samuel Keller of Baltimore; her father, Albert Irvin McClure of Towson; and four grandchildren.