Thomas Shaun Tulley

Thomas Shaun Tulley, 62, of Mansfield, Texas, passed away September 20, 2026. Born April 19, 1964, in Cumberland, Maryland, he was the son of Thomas W. and Ardyce Tulley. He married Marimil M. Tulley on March 15, 1989, and together they built a life rooted in devotion to family, faith, and steady purpose.

Thomas “Tom” Tulley served 12 and a half years in the U.S. Navy, attaining the rank of Gunners Mate Chief. After his military service, Tom continued a life of discipline and public-minded work through 14 years with the Federal Railroad Administration, followed by a distinguished career in the private rail industry. His professional path included roles with the Fort Worth Transportation Authority (Trinity Metro) as Chief Operating Office/Chief Mechanical Officer for two years; the North County Transit District in San Diego, California, for over a year before returning to Texas; and private rail companies where his experience and judgment were widely valued. At Trinity Metro, Tom worked with TEXRail and Trinity Railway Express (TRE), bringing valuable experience in rail operations and regulatory compliance. During his time with the North County Transit District, Tom brought decades of experience in rail operations, maintenance, safety and regulatory compliance. He was hired to serve as the agency’s Chief Operations Officer of Rail, responsible for rail operations and maintenance programs for the COASTER Commuter Rail and SPRINTER Hybrid Rail. Tom believed that service performance, safety and security were not just goals, but outcomes of a well-trained and dedicated workforce working in collaboration with the public. His leadership helped support the continued development of rail service and infrastructure for the communities served by the District, including the transition of COASTER and SPRINTER operations and efforts to advance a zero-emission rail fleet. He served as Director of Regulatory Compliance and Rail Development with First Group USA, as county manager. This included serving as an international rail transportation executive, consultant and advisor working with companies Canada, Spain, United Kingdom, Italy, Japan and Switzerland. One of the key projects was successfully developing a baseline operational plan for the Honolulu Area Rapid Transit (HART) rail line in Hawaii. At the time of his passing, he was employed by Rio Grande Pacific Company as a Rail Specialist and managing director US/CA with Stadler Services USA. In that role, he directed the corporate effort for all current and future Stadler U.S. and Canada properties to ensure all federal, state and local regulatory requirements were met.

Beyond his work, Tom gave his time generously to what mattered most at home. He coached his two sons’ baseball teams from the time they were 3 years old through age 16, showing up year after year with constancy, encouragement, and pride. He found joy in music, playing the guitar, and he also enjoyed golf. A lover of the open road, he especially cherished riding his motorcycle. Tom was a member of K of C and was known for his passion for music, home improvement projects, and motorcycle sports.

Tom is survived by his wife, Marimil M. Tulley; sons, Joshua C.M. Tulley and Jacob Z.M. Tulley; daughter-in-law, Olivia Caprizzi; and sister, Candyce Marcantoni.

Visitation will be held at Moore Bowen Road Funeral Home, 4216 South Bowen Road, Arlington, TX 76016, on October 26, 2026, from 5:00 pm to 9:00 pm.

A Funeral Mass will be held at St Joseph Roman Catholic Parish, 1927 SW Green Oaks Blvd, Arlington, TX 76017, on October 27, 2026, at 10:30 am.

An Inurnment Service & Military Honors will be held at Dallas-Fort Worth National Cemetery, 2000 Mountain Creek Pkwy, Dallas, TX 75211, on October 29, 2026, at 2:15 pm.