It's actually a good question as it pertains to Baker.
The answer is very very few - four, to be exact (not including side panels). Out of many, many covers. In order of appearance they are
- Diary Secrets 12 - June, 1952. Not a drawn cover per se, some would say not even a Baker.
- True Love Pictorial 2 - Feb, 1953
- Wartime Romances 15 - May, 1953
- Diary Secrets 20 - Sept, 1953
Baker and St. John bucked the trend that was so early established by Kirby at Prize, and copied so many times afterwards that a crying woman and the romance genre became inextricably linked. Consider this piece, one of Roy Lichtenstein's earliest and most famous works: Drowning Girl (1963). A swipe of DC's Secret Hearts 83, btw.
The flavor of the St. John line, due in large part to Archer St. John's editorial direction, is very fully covered in the marvelous book, Romance Without Tears.