William “John” Boshko, Jr., age 87 of Thomaston, and previously of Derby, entered peaceful rest on Tuesday, November 3, 2026 in St. Vincent Medical Center, Bridgeport. He was the beloved husband of the late Estelle (Mierzejewski) Boshko. Born in Derby on November 8, 1938, John was the son of the late William, Sr. and Frances (Lech) Boshko.
A retired industrial arts teacher at Derby High School, John took great pride in sharing his knowledge with his students. He loved wood working, the outdoors, and walks enjoying nature, especially with his devoted canine companion, Barney.
Mr. Boshko is survived by his loving son, James Marshall; daughter, Elaine Sadlon; nieces and nephews, MaryAnn Stevens and her husband Craig, John Chernecky and his wife Kim, Susan Ascenceo and her husband Joe, and James Kazmierski and his wife Nancy, as well as numerous great nieces and nephews. In addition to his parents and wife, John was predeceased by his siblings, Henry Kazmierski, Genevieve Chernecky and Cora Kazmierski.
Mr. Boshko’s arrangements have been entrusted with the Ralph E. Hull Funeral Home, 161 W. Church St., Seymour, CT 06483, and his services will be private. For more information or to leave an online condolence, please visit us at www.hullfh.com