Sheldon Mayer entered the world of the comic book while it was still being born. In 1935 (Mayer was 17 or 18 at the time) Sheldon west to work for what was to become DC comics when it was just forming, when comics still were mostly reprints of newspaper strips. Sheldon was already contributing original material (fillers - they were called) and became one of the first comic book artists ever.
He drew a semi-autobiographical feature called "Scribbly" which lasted all the way through the golden age and would even become later the home of the golden age Red Tornado as the strip wore on. Here's the Scribbly story from All American Comics #12:
I'm still learning all the areas Sheldon impacted comics and all the work he put out during an almost 40 year career. Every time I see his stuff though, it's instantly recognizable.
Thanks Sheldon, for keeping the "funny" in Funny Books!