RAYMOND — John Logan, 72, died suddenly and peacefully on Sunday, June 3, 2012 of a heart attack at home with his beloved wife, Theda, at his side.

Born and raised on Pitmaduthy Farm, Scotland, son of Alexander John and Marion Smith Ritchie Logan, he graduated BSc in Electrical and Mechanical Engineering, 1st Class Honours from Glasgow University. John earned his Ph.D. in Electronic Engineering from Cambridge University, England, where he was a member of Trinity College. In 1966, he was recruited by many American firms and chose to join Bell Telephone Laboratories in Holmdel, N.J., spending the rest of his career as a director with this company as it evolved into Lucent Technologies in North Andover, Mass.

In his retirement, while acting as general contractor for construction of the home of his dreams, John discovered geothermal energy and entered into a second career. He became the regional director in Maine for Water Energy Distributors Inc., promoting geothermal as the lowest cost heat in Maine. He was a member of the Maine Technology Institute’s environmental technology board, a new board member of the Hydrogen Energy Center and a lifelong member of IEEE. John enjoyed meeting other professionals through E2Tech and Business Network International in Windham.

He was an active member of the Casco Village Church and volunteered many hours at the CVC food pantry.

John was loved by all for his gregarious nature and his willingness to engage and respect people from all walks of life. His brother, Jim, wrote, “John lived life to the fullest, everything at a hundred miles an hour with boundless enthusiasm for every project he undertook.”

John is survived by his 98-year-old mother; his wife, Theda Mackenzie Logan, to whom he was married in 1962; his brother, Jim of Scotland; sister Aileen of Amherst, Mass.; two daughters, Julia Yakovlev Logan, M.D. and Catriona Logan Sangster; four grandchildren; and many relatives and friends around the globe that admired and loved him dearly.

A celebration of John’s life is planned for Saturday, Sept. 1, 2012, 2 p.m. at 33 Wawenock Road in Raymond. Arrangements are by Hall Funeral Home, Casco.

In lieu of flowers, donations may be made in memory of John to: Raymond Rescue, 1443 Roosevelt Trail, Raymond, ME 04071 or Casco Village Church Food Pantry, P.O. Box 367, Casco, ME 04015.