William D. Clark-Of Everett, passed away at the Mass General Hospital after failing health on January 11 ^th , 2023, at the age of 83. He was the beloved husband of the late Jean I. (Campbell) Clark. Loving father of Billy Clark and his wife Patricia of Wakefield, and the late Dean Clark. Cherished grandfather of Kevin, Lauren, and Megan Clark. Loving brother of Michael, Patrick, and Avis Clark, and the late Thomas Clark and Judy Norcott. Loving brother-in-law of Donna and Rowland Flynn. He is also survived by his loving granddog Chelsea.  Mr. Clark served in The US Navy during the Vietnam War. Prior to his retirement, Mr. Clark was a longtime power company engineer. Relatives and friends are kindly invited to attend visiting hours at the JF Ward Funeral Home, 772 Broadway, Everett, on Sunday, Jan 15 ^th , from 2-5 pm, followed by a funeral from the funeral home on Monday, Jan 16th, at 9 am with Funeral Mass in Immaculate Conception Church, 487 Broadway, Everett, at 10 am. Services will conclude with military honors at Puritan Lawn Cemetery in Peabody. In William's memory, donations may be made to St. Jude Children's Hospital @ www.stjude.org