Wolfe also helped to found "The American Journal of Psychology". He taught at the University of Nebraska until his death from a heart attack in Wheatland, Wyoming on July 30, 1918. This occurred six weeks after he and other faculty were charged by the University of Nebraska Board of Regents with "hesitating, halting and negative support of the government" (during World War I). He and his fellow professors were accused of having "improper attitudes", which communicated even unintentionally, might cause someone else, such as a student, to not support the war effort. This was seen as more than adequate cause for dismissal.