• The on-sale date (February 15, 1944) is the date of publication as per Copyright Entries 1944 Pamphlets. (Per page 10 and page 175.) That is the date Roy Rogers Four Color #38 was published: February 15, 1944. (The 1944 Copyright Entries code for this entry is AA 450120.)
• Per Robert W. Phillips' "Roy Rogers" (MacFarland, 1995, 446pp), copyright expired February, 1972, not renewed.
• This was the first photo cover western comic published (as noted by Robert Phillips).