When Tillman Lazarus "Laz" Burch was born on 30 April 1875, in Bosque, Texas, United States, his father, James Tillman Barnabus Burch, was 51 and his mother, Susan Slavin, was 38. He married Nancy Ann Offield on 16 September 1898, in Coke, Texas, United States. They were the parents of at least 5 sons and 2 daughters. He died on 16 September 1939, in Winslow, Navajo, Arizona, United States, at the age of 64, and was buried in Joseph City, Navajo, Arizona, United States.