In Memory of a Pioneer and a Legend President John Dineen Wake: Sunday, March 29 - 3 p.m. Cooney Funeral Home 625 Busse Highway, Park Ridge Funeral: Monday, March 30 - Noon Saint Juliana Catholic Church 7201 N. Oketo Avenue, Chicago John Dineen, Ret CPD, born on July 4, 1936, cago to the late Tom and Dorothy Dineen, passed away on March 25, 2026. Beloved husband of Marilyn Dineen, nee Callahan, for 68 years. Loving father to Karen (John) Kissane, Susan Dineen, Cindy (Norb) Sliwa, John Michael Dineen, and Timothy (Ret CPD) (Sue) Dineen. Adored and devoted grandfather to AJ (CPD), Jonathan, Beth, Dave, Kyle, Kevin, Megan, Rose, Maggie, and Maddie. He was a great-grandfather to 11. Fond brother of Tom (the late Jean) and Patricia Hennessy, and revered uncle to many nieces and nephews. John was a proud St. Mel's alum, Army veteran, and devoted member of the Knights of Columbus. He was a longtime member of the CPD and the dedicated President of the Fraternal Order of Police for over twenty years, which also included a two-year term as the national @GLFOP President. He was a champion for labor rights and officer benefits whose decades of service and visionary leadership left a lasting impact on the department and all those he represented. John served as National FOP President while also leading @FOP7Chicago in 1980. When Chicago police officers voted to unionize, securing a contract became his primary focus. After the FOP won the right to represent those officers, John made one of the most selfless decisions in leadership. Rarely does a leader at the top step aside for a greater cause, yet that is exactly what he did. He left national office to lead Lodge 7 to its first collective bargaining agreement in 1981, and later worked to secure those rights permanently through the Illinois Labor Relations Act of 1983. That choice is what set him apart as a model of selfless leadership. Above all else, John enjoyed spending time with his family and friends. The family extends their heartfelt gratitude to his caretakers, Kathy, Lynn, Maria, Alice, and nurse Margaret, for their kind and gentle service in the final chapter of his life. In lieu of flowers or donations, please consider supporting the @100ClubIllinois or @MercyHome for Boys & Girls. chicagofop.org