Henry W. Brennan, age 69, passed away suddenly on Sunday, February 11, 2024.   Henry was the beloved husband of Dee ( nee Rubow );  Loving father of Matthew ( Catherine ) Brennan, Melissa ( Wally ) Brennan, Michael Brennan and Mark ( Jessica ) Brennan.  Devoted grandfather of Anayse, Xavier, Caoimhe, Eamon and Ronan ... and cherished great-grandfather of Avalynn.   Henry was preceded in death by his parents, 1-brother and 1-sister.   Dear friend and neighbor of many...too numerous to mention.   Visitation will be held on Friday, February 16th from 4-9 P.M.  Visitation will continue on Saturday, February 17th from 9-11 A.M. followed by a procession to St. Adalbert Cemetery in Niles.