William E. Dinwiddie

William E. Dinwiddie, of Bartlett; passed away on October 25, 2026, at the age of 83; William was the dear son of Elliot & Eunice (nee, Hill). He was a very loving husband to his beloved wife, Cheryl Kay (nee, Kopczyk) and loving father of Steve. Also left to mourn William's passing are extended family and a host of friends.

William was an exceptionally talented and accomplished musician whose passion for music was evident throughout his life. He earned his Master's degree in music from Northwestern University and was a proud member of the Chicago Federation of Musicians Union and a past president of the APOL, the Association Of Professional Orchestra Leaders. Regarded as one of Chicago's premier trombone players, William enjoyed a remarkable musical career spanning decades.

During the 1970's, 80's and 90's, he performed at many of Chicago's prestigious downtown hotels, including the Drake Hotel. He also performed at the renowned Schubert Theater and in the orchestra pit for the Musical Cats, in Chicago. William was a proud member of the Second Coming band and Chicago Trombone Authority (CTA). In addition to his talents as a performer, William was a gifted composer, songwriter, and arranger, contributing his musical expertise to a Grammy Award-winning album.

Beyond his extraordinary musical accomplishments, William had a wonderful sense of humor and a deep love of history. He will be remembered not only for his exceptional talent and contributions to Chicago's music scene, but also for his laughter, friendship, and joy he brought to those fortunate enough to know him.

Visitation will be held on Monday, November 2, 2026 at Countryside Funeral Homes & Crematory, 950 S. Bartlett Rd., Bartlett, IL 60103, from 9:00 A.M. - 11:00 A.M. A procession to Memory Gardens Cemetery, in Arlington Heights, IL for graveside interment will follow.