Union br/Wilson County, Texas br/29 19.180' N 97 50.625' W br/br/Text: Near 1857 Ranch of Samuel and Martha (Hastings) McCracken. Post office, opened 1869, was named by veterans of Sibley's Civil War campaign in New Mexico. Town had businesses, school, blacksmith shop where DeWitt County Sheriff Jack Helm died (1873) of blast from gun of John Wesley Hardin. Post office closed 1883.