Whittle v. Johnston , 392 S.W.2d 867 ( 1965 )
Frost v. Crockett , 109 S.W.2d 529 ( 1936 )
Thomason v. Wiebusch , 89 S.W.2d 452 ( 1935 )
Texas Co. v. Lee , 135 S.W.2d 180 ( 1939 )