John “Mac” McCoy Lamb, born on May 14, 1941, in Spokane, Washington, passed away peacefully on August 10, 2025, in Richland, Washington surrounded by his children and life partner. A beloved father, brother, partner and friend, Mac dedicated his life to those he loved. He graduated from Washington State University in 1964 (Go Cougs) with a BS in Construction Management and enjoyed a successful career as a contractor throughout the west coast before returning to his beloved hometown of Richland, Washington. He was known for his kindness, his patience, and his dedication to building lasting relationships. He was grateful for the many calls, visits, and cards offered by his many friends during his brief illness.

Mac is survived by his devoted children, Kary Lee Hemphill (Charles), David Lamb (Shelly), Michael Lamb, and James Lamb, who carry forward the values of kindness and compassion he instilled in them. His loving spirit also lives on through his sister, Mary Katherine ‘Sister-Baby’ Brown (Larry), his first wife, Kathryn Sciamanda, his grandchildren-Colby, Deborah, Kathryn, Taylor, and Morgan-as well as his beloved partner, Marie Barrett, and her family. He was preceded in death by his second wife, Linda Granquist Lamb, and his parents, Raymond and Katherine Lamb.

A private inurnment will take place at 12 noon on October 4, 2025. Friends and family are invited to gather for a celebration of life ceremony at 1:00 pm at Sunset Gardens Event Center. A reception will follow at Mac’s Richland home. The family looks forward to honoring Mac’s life and the love he shared with those around him.