Thomas Daniel Gallagher was a gentleman, patriot, friend, loving husband, and dedicated father and grandfather. Tom was born to his parents, the late Dr. Thomas and Mrs. Catherine McCullough Gallagher, on New Year's Day, 1941, in Wilkes-Barre, PA. Tom is survived by his loving wife of 52 years, Mary Alice Mulhern Gallagher, and their children Dr. Molly Gallagher Kolski, Tom Gallagher and wife Civic, Capt. Matthew Gallagher and wife Kelly, Katie Gallagher Coligado and husband David. His grandchildren: Lauren, David, and Julia Kolski, Gus and Lucy Coligado, Joseph and Mary Gallagher, and Annabelle and Willie Crowson. Tom was also greatly loved by his many nieces and nephews. Tom was an only child, so Mary Alice's four brothers and three sisters, along with their spouses, embraced Tom as a brother. Tom received a Congressional Appointment to the United States Naval Academy and graduated in 1962. He was a proud alumnus and loyal friend to his fellow classmates, particularly the 18th company. Tom and his wife, Mary Alice, were sweethearts at St. Mary's High school and married after he completed Basic School at Quantico, VA on April 27, 1963. He was commissioned in the United States Marine Corps, loyally served his country for 13 months in Vietnam, and attained the rank of Captain. Following his military career, Tom had a successful 35-year career with IBM both in the U.S. and in Europe. Over the years, his family made many moves all over the states, thanks to the military and IBM, settling in Dallas, TX in 1980. Just as their youngest child left for college, Tom was offered an opportunity to work for IBM in Europe and he and Mary Alice enjoyed a 7-year adventure in London and Paris before returning to Dallas. Tom was a life-long runner, biker and a disciplined exerciser. He enjoyed his bike trips to Europe yearly, with his friend/brother in-law Erwin Storz. He loved volunteering at Texas Scottish Rite Hospital for Children. And he was always there to help his grown-children with grandchildcare, home improvement and repairs. His legacy is his sense of humor and generosity. Tom was honest, witty and smart. He was extremely loyal to his family, friends, and classmates. Tom quietly and selflessly served others. Without a doubt, he sacrificed and worked hard as a husband and father to provide the very best he could for his family. A funeral mass will be held at 11a.m. on Friday, June 12, 2015 at All Saints Catholic Church (5231 Meadowcreek Drive, Dallas, TX 75248) and a military burial at the Dallas-Fort Worth National Cemetery. In lieu of flowers, a contribution may be made in Tom's memory to St. Jude's Research Hospital for Children, and Scottish Rite Hospital for Children. Arrangements are under the direction of ARIA Cremation Service and Funeral Home 19310 Preston Road Dallas, Texas 75252 214-306-6700