William Keith Brittan

William K. Brittan of Third Lake died in hospice care on Monday, November 3, 2025 at age 76. He is survived by his wife of 56 years, Alice Susan, daughter Jill (Joseph) Moon, son Ian Brittan and grandsons Lewis Ignas Brittan and Miles William Brittan, sister Barbara (Robert) Stanley and brother Robert H. Brittan, and many in-laws, cousins, nieces, nephews, friends, and former colleagues. He is preceded in death by his parents Lewis H. and Julia (Haataja) Brittan.

Bill was born in Chicago on June 3, 1949. He graduated from the University of Illinois in Chicago with honors with a Bachelor of Architecture and Design degree in 1974. He was then employed by Wendell Campbell Associates in Chicago and became a principal of the firm. In 1990, he accepted a position with Abbott Laboratories. As a project manager architect, he worked on planning and design for new manufacturing facilities across the globe. His final project before retirement in 2017 was close to home, when he helped renovate the Deer Path Inn in Lake Forest.

Bill was interested in photography, tennis, cycling, camping, fishing, cars, travel, music, and golf. He enjoyed living on Third Lake for fishing and boating and just admiring the lake in the off season. Above all, Bill was a “foodie”. Anyone who spent time with him would learn about the foods he loved and his favorite places to eat. He was often called upon to “start the meal” during family events. Bill was a great conversationalist and focused on knowing people and their stories. He was a confident, responsible man, and young at heart at the same time, which endeared him to so many.

In lieu of flowers, donations may be made to St. Jude Children’s Research Hospital.

Private services have been held. For information or to leave condolences: Shalom Memorial Funeral Home, www.shalommemorial.org or (847) 255-3520.