He enlisted in the United States Army during the early days of World War II.
[2] Mohr was the leader of the Citizens Emergency Defense System, a paramilitary group exclusive to White Christians.
The group was considered to be a militant subgroup of the Christian Patriots Defense League - an anti-Semitic survivalist organization based in the state of Illinois.
[5][6][7] Additionally, Mohr was a promoter of Christian Identity religion and The Protocols of the Elders of Zion, an alleged forgery of an antisemitic text purporting to describe a Jewish plan for global domination.
One 1986 article has been linked by political opponents to a Seattle man who, after failing to arrange a meeting with Mohr, went on to murder a family of four.