Clyde A. Mauger III, 67, of Westtown, owner of a fuel oil firm in Chester County, died Monday, May 24, at Wilmington Hospital after suffering a heart attack.

Born in Philadelphia, Mr. Mauger graduated from Lansdowne-Aldan High School in 1961 and earned a bachelor's degree in business administration at Bethany College in West Virginia in 1965.

Mr. Mauger joined the family business, Mauger & Co., founded in 1964 as a fuel oil supplier.

The company added a heating and cooling division known as Mauger Mechanical and then another division, Cedar Brook Lawn Care.

He was named president of the firm in 1980.

In the 1980s, said his wife, Lynnette, Mr. Mauger was president of the Pennsylvania Petroleum Marketers and Convenience Store Association.

He also was a volunteer executive with several agencies.

In the 1970s, he was president of the Boys Club in Media, now the Media Youth Center, and president of the Jaycees chapter there.

At the West Chester office of the American Red Cross, his wife said, Mr. Mauger was chairman from 1998 to 2000.

At Planned Parenthood of Chester County, she said, Mr. Mauger was chairman of the development council from 2000 to 2006.

And he was a board member of the Malvern Public Library.

In addition to his wife, Mr. Mauger is survived by his father, Clyde A. Jr.; stepmother Patti; sons Clyde A. IV and Zachary; daughter Kristin Hyland; stepdaughter Alanna Ettinger; a sister; seven grandchildren; and his former wife, Pamela Hebel. He was predeceased by his mother, Evelyn Mauger.

The funeral was held Thursday, June 3.

Contact staff writer Walter F. Naedele at 215-854-5607 or wnaedele@phillynews.com.