Born in Kosse, Texas on August 19, 1888, Bratton attended the public schools. A graduate of the state Normal School, he taught school for some years in Claude, Texas and Hereford, Texas. He read law and was admitted to the bar in 1909, whereupon he began practice in Farwell, Texas. He continued his practice upon moving to Clovis, New Mexico in 1915. From 1919 to 1921 he served as the district court judge for the fifth judicial district of that state. Upon division of the district, he continued in the same capacity for the ninth judicial district until 1923, when he succeeded Herbert F. Raynolds to become an associate justice of the New Mexico Supreme Court. He remained in this position until 1924, when he resigned to accept the Democratic nomination for the United States Senate.[1][2]