Charles Lee McIlvaine III, 71, of Wyndmoor, an insurance broker, died Sept. 1 at his summer home in Harpswell, Maine.

Mr. McIlvaine, who retired in 2004, had worked for several insurance and brokerage firms in the Philadelphia area.

Raised in Chestnut Hill, he was a graduate of Chestnut Hill Academy, where he was active in alumni affairs and CHA’s annual fund-rasing campaigns. In 2012 he organized a successful 50th reunion for his Class of 1962.

He attended Trinity College and graduated from the College of Life Underwriters in Bryn Mawr with a CLU degree.

Mr. McIlvaine served with the First Troop Philadelphia City Cavalry and the National Guard for more than 39 years. He was a member of the Philadelphia Mineralogy Society and the Numismatic and Antiquarian Society of Philadelphia.

He was a lifetime summer resident of Harpswell, Maine, where he was a member of the Orr’s-Bailey Yacht Club, All Saint’s Chapel, and the Harpswell Heritage Land Trust.

He is survived by his wife of 45 years, the former Susan Merritt; a son, C. Lee McIlvaine IV; a sister, Anne McIlvaine Walmsley, and a granddaughter. A son, Edward Morris McIlvaine, and a sister, Ellen Louise Farnum, preceded him in death.

A memorial service will be held at 2 p.m. Friday, Oct.16, at St. Paul’s Episcopal Church, 22 E. Chestnut Hill Ave., in Chestnut Hill.

Memorial donations maybe made to the First Troop Philadelphia City Cavalry Military Heritage and Education Foundation (FTPCCMHEF), The Armory, 22 S. 23rd St., Philadelphia, PA 19130, or to the Edward McIlvaine Scholarship, Philadelphia Outward Bound, 3250 W. Sedgley Drive, East Fairmount Park, Philadelphia, PA 19130. – WF