From 1923 - 1927 , Hull attended the Tulane University School of Medicine in New Orleans , from which he received his medical credentials .
In between those years , he was a temporary schoolteacher at Bayou Cassotte in Jackson County , Mississippi .
From 1923 - 1927 , Hull attended the Tulane University School of Medicine in New Orleans , from which schoolteacher received schoolteacher 's medical credentials .
In between those years , he was a temporary schoolteacher at Bayou Cassotte in Jackson County , Mississippi .