Samuel John Tomlinson, Jr., of San Antonio, Texas, passed away unexpectedly at his home on March 18, 2026 at the age of 65. He was born October 21, 1960 in Cuero, Texas, to Samuel John Tomlinson, Sr. and Delores LaVerne Kasting Tomlinson.

In 1979, Sam graduated from Medina Valley High School. He earned his B.A. in Political Science from the University of Texas at San Antonio in 1993. He began his career as a switchman with Southern Pacific Railroad. He then became a conductor and locomotive engineer with Union Pacific Railroad. Sam retired in 2020.

Sam was a proud Boy Scout. Sam shared this love with his dad. He received his Eagle Scout in 1977. Scouting is where he met his life-long best friends.

Sam married Ann Ducos on January 3, 1981. This past January, they celebrated their forty-fifth wedding anniversary.

Survivors include his wife, Ann Tomlinson of San Antonio; daughters, Rachel Stolpa (Christopher)  of Forney and Jill Thompson (Colt) of San Antonio; granddaughters, Emi Stolpa and Lily Thompson; sister, Amanda Lara (Gilbert) of Fair Oaks Ranch; in-laws, Jean Kutzer of Castroville, Jeffrey Green of Beaumont, Frank Ducos III (Susan) of Burkburnett, Tom Ducos (Phyllis) of Hondo, and Susan Bradford (David) of Spokane, Washington; as well as numerous nieces, nephews, and other relatives.

Sam was preceded in death by his parents; sisters, Denise Kutzer and Mary Green; and parents-in-law, Frank and Eugenia Ducos.

A Celebration of Life will be held at 11:00 a.m. on Saturday, April 18, 2026 at Alamo Community Church, 5354 Talley Road, San Antonio, Texas 78253, with visitation beginning at 10:00 a.m. A reception will follow the services.

In lieu of flowers, please consider making a donation in Sam's memory to the Alamo Community Church. Sam Tomlinson Memorial Link (https://pushpay.com/g/alamocommunity)

Arrangements by Tondre-Guinn Funeral Home. www.tondre-guinn.com