Death:Death, Cause unspecified 8 March 1974 (Age 66) chart Placidus Equal_H.
American depression era artist, White House/National Gallery of Art/American Artists Professional League honoree, inventor, patent holder, author, and Chair of Art, University of South Dakota. He died unexpectedly on 8 March 1974, aged 66, while visiting family in Kansas City, Kansas. Link to Wikipedia biography