death_date birth_place imagesize nationality name birth_date area image article_title birth_name death_cause
11 july 1975 new york city , united states 120 american crockett johnson 20 october 1906 cartoonist crockett_johnson _ -lrb- mid-1960s -rrb- . jpg crockett johnson
 david johnson leisk lung cancer
crockett johnson

crockett johnson was the pen name of cartoonist and children 's book illustrator david johnson leisk -lrb- october 20 , 1906 -- july 11 , 1975 -rrb- .
he is perhaps best known for the comic strip `` barnaby '' -lrb- 1942 -- 1952 -rrb- and the `` harold '' series of books begun with `` harold and the purple crayon '' .
from 1965 until his death johnson created over a hundred paintings relating to mathematics and mathematical physics .
eighty of these are found in the collections of the national museum of american history .
