Stuart Hayes Lewis, 80,of Newtown Square, a retired orthopedic surgeon, died of complications from pneumonia April 14 at home.

Dr. Lewis maintained a practice in Havertown for 26 years. He was on the staff of the former Haverford Community Hospital, and was a clinical instructor at the Hospital of the University of Pennsylvania. He retired in 1984.

A native of Tasmania, he graduated from the University of Adelaide Medical School in Australia, and interned at Regina General Hospital in Saskatchewan.

While completing an orthopedic residency at Johns Hopkins University Hospital in Baltimore, he met his future wife, Mary Martin Powell, who is also an orthopedic surgeon. He later completed orthopedic surgical residencies at Temple University Hospital and at Shriners Hospital for Children in Philadelphia.

Dr. Lewis was a Mason and a Friend of the Bryn Mawr College Library. His interests included classical music, 18th-century antiques and exotic cuisines. He collected cookbooks, enjoyed the Food Channel, and encouraged his daughters' culinary efforts, his wife said.

In addition to his wife of 53 years, Dr. Lewis is survived by daughters Dee Cottingham, Caroline Bradley, Margaret and Judith; a sister; four grandchildren; and five great-grandchildren.

A memorial service will be held at 4 p.m. tomorrow at St. Mary's Episcopal Church, 104 Louella Ave., Wayne 19087. Memorial donations may be made to the Stuart H. Lewis Memorial Fund at the church.