Robert H. Crabtree married Mary Jane Powers b. 1884 in AR. Mary was the daughter of Martha Jane Underwood and James Powers. Her sister Cora Powers married Thomas Crabtree (possibly Robert's brother?). Robert H. Crabtree is in the 1910 and 1920 census with his wife Mary Jane and children Robert, Olan/Claude, Braden, Wave, Eula. I can find nothing for him or Nervy before 1910. Thanks!