William T. Sullivan Sr.

William T. Sullivan Sr., age 81, of Bolingbrook, IL, passed away peacefully on March 19, 2026, with family and friends by his side.

William is survived by his loving friend, Melodie Erickson.

He was the beloved husband of the late Rosemary Barberini Sullivan.

He was the loving brother of Timothy (Sharon) Sullivan.

He was the father to William T. Sullivan Jr., Colleen Sullivan, and Michael (Michelle) Sullivan.

William was a cherished grandfather to Emerald Sullivan, Savanna Sullivan, Mitchell Jones, Trevor Jones, Philip Jones, Katie Sullivan (Guillen), Michael Sullivan, and Chilton Sullivan.

He was a great-grandfather to Bailey, Leonardo, Santiago, and Milo.

He was a fond uncle to many nieces and nephews, and will be deeply missed by extended family and all who knew him.