The Saint #6, 1947
Frank R. Sieminsky (also spelled as Sieminski) worked in American comic books in the late 1940s and early 1950s. He worked for Avon Comics on horror stories (1948-54) and titles like 'The Saint' (1948). His art appeared in titles by D.S. Publihsing (western, crime), Charlton (western, crime), Timely/Atlas (horror, romance), National Periodicals/DC (romance), Better Publications (romance) and the American Comics Group (horror). He was also present in Loco by Satire Publications in the late 1950s.
It is unknown to us whether this is the same Frank R. Sieminski from New York who lived from 11 August 1917 to February 1992.