George Lincoln Rockwell was the founder of the American Nazi Party, Norman Rockwell was a famous mid century Illustrator as @jabo stated and I don't see any references of either on this forum.
I think the OP my be mistaken but if he is referring to George then consider this, he had a successful naval career, as an Aviator as a veteran of World War II and Korea. His political views eventually ended his 19 year carer short of retirement but he did receive a honorable discharge. George was a pipe smoker
I can find no connections of Norman Rockwell and White Supremacists, he also was a pipe smoker