found: P&P data from His Sentinel Louie [graphic] c1935:drawing (O. Soglow)
found: O'Sullivan, J. The art of the comic strip, 1971:p. 85 (Otto Soglow, 1900-)
found: Falk. P. H. Who was who Amer. art, 1985(Soglow, Otto, 1900-1975)
found: Wikipedia, Feb. 9, 2017(Otto Soglow; born December 23, 1900, Yorkville, Manhattan, died April 3, 1975, New York City; American cartoonist best known for his comic strip The Little King) - https://en.wikipedia.org/wiki/Otto_Soglow
found: Nash, O. Hard lines, 1931:title page (illustrated by Soglow)