Heath drew several Western stories for such Timely comics as "Wild Western," "All Western Winners," "Arizona Kid," "Black Rider," "Western Outlaws," and "Reno Browne, Hollywood's Greatest Cowgirl." As Timely evolved into Marvel's 1950s iteration, known as Atlas Comics, Heath expanded into other genres. He drew the December 1950 premiere of the two-issue superhero series "Marvel Boy," as well as scattered science fiction anthology stories (in "Venus," "Journey into Unknown Worlds", and "Men's Adventures"); crime drama ("Justice"); horror stories and covers ("Adventures into Terror", "Marvel Tales", "Menace", "Mystic", "Spellbound", "Strange Tales", "Uncanny Tales", the cover of "Journey into Mystery" #1), satiric humor ("Wild", "Mad"), and war stories.