John J. Cassidy, Jr., (Jack) of Naples, FL, Curraheen, Count Kerry, Ireland and formerly of Chicago, IL passed away peacefully on November 9, 2016. He was born December 7, 1925 to Margaret Fitzgerald Cassidy and John J. Cassidy. He is survived by his wife of 57 years Marilyn (nee Gariepy); loving father of John (Susie), Megan Walls and Mark (Pam). Loving Grandfather to Kaitlin Cassidy, Victoria and Christopher Walls, and Caroline, Claudia and Megan Cassidy. Brother of Mary Cassidy Burns (the late John), the late Margaret Cassidy Burns (the late Bart) and Barbara Cassidy DeSmet (Harry). Beloved uncle to many nieces and nephews.

Born on Chicago's Northside, Jack attended St. Phillip High School and Marquette University School of Engineering. He was a World War II veteran serving in the Pacific Fleet in the United States Navy. Jack graduated from Loyola University Chicago School of Law and was admitted to the Illinois Bar in 1951. He was a senior litigation partner with the Chicago firm of Vedder Price for more than 30 years. A Fellow of the American College of Trial Lawyers; he served on the Illinois Bar Association's Board of Governors from 1979 until 1985, the Lawyers' Trust Fund (IOLTA) Board, and the Illinois Bar Foundation Board, of which he was President from 1990 to 1992. In 1994, he became of counsel with the firm. He took and passed the Florida bar exam, and was admitted to practice in Florida in 1995.

In his retirement, he served as a pro bono lawyer in Immokalee with the Florida Rural Legal Services, the Coalition of lmmokalee Workers, and the Florida Immigrant Advisory Center. In 2004, he was awarded the Florida Bar President's Pro Bono Service Award, by the Florida Supreme Court, which recognizes individual pro bono legal services to the community.

Jack had a lifetime love of golf and was a long time member of Dooks Golf Club, County Kerry, Ireland and Hole-in-the-Wall Golf Club Naples, Florida. In lieu of flowers, donations can be made to Loyola University Chicago School of Law or Avow Hospice Naples, Florida. Visitation on January 21, 2017 at 9:00AM with Funeral Mass at 10:00AM St. Leo the Great Catholic Church, 28290 Beaumont Road, Bonita Springs, Florida, 34134. A memorial service will be held in Chicago in the spring of 2017.