Merwarth – Mark Francis Merwarth, Sr., age 90, of Jacksonville, Florida passed away peacefully on May 20, 2025.  He was born on November 13, 1934, in Bethlehem, Pennsylvania to the late Hugh Merwarth and Elizabeth Miller Merwarth.  A devout Catholic throughout his life, Mark carried his beliefs with quiet strength and unwavering devotion. Mark and the love of his life Gloria shared 64 beautiful years of marriage.  They were avid walkers and participated in 10k walks in all 50 states and even participated in a few overseas. Mark and Gloria were also members of the American Volkssport Association. They built their life together in Orlando, Florida, where they raised their children with love and dedication. Later in life, they relocated to Fernandina Beach, Florida, a place that became a cherished home for many years. A proud Florida State Seminoles fan, Mark's passion for his team was matched with his love for spending time on the golf course. His sense of humor was legendary among those who knew him. Mark was quick-witted and always ready with a smile or a clever remark. Mark and Gloria had a special fondness for what they affectionately called "wine time," often reminding others that it was always five o'clock somewhere. Above all else, Mark loved his family deeply. He adored his grandchildren and treasured every moment spent with them. Mark's warmth and laughter filled every room he entered, leaving lasting memories for all who had the privilege of knowing him. May his memory bring comfort to those who knew him and continue to inspire joy and love in their lives. Mark is preceded in death by his parents; wife, Gloria Joan Merwarth; brother, Edward Merwarth; sisters, Lucille Kovacs, Betty Ann DeSieno, and Mary Rader.

Mark leaves behind his children, Laurie (Debi) Merwarth, Mark Merwarth, Jr., Lisa (Linda) Swanson; grandchildren, Owen, Landon, Logan, Lindsay, Liam, Lukas; great-grandchildren, Brazen, Laekin.

A Celebration of Mark's Life will be held on Friday, June 13, 2025, at 11:00 a.m. at Our Lady of Consolation Catholic Church with Father Bui officiating. The arrangements are under the care and direction of Nassau Funeral Home, 541720 US-1, Callahan, Florida 32011. 904-879-1770. Visit www.nassaufh.com to sign the family's guest book.