Borth served in the military during World War II, ending up in 1946 on Montauk Point, Long Island.[4] It was there that he was inspired to create the sea adventure comic stripKen Stuart,[4] which was syndicated by the Frank J. Markey Syndicate from September 8, 1947,[6] to 1950.[7] The Markey syndicate also attempted to syndicate Borth's strip Bouford in 1949.[7]Columbia Comics published one issue of a Ken Stuart comic book in 1948.[1]
Following the demise of Ken Stuart, Borth worked on features for a few Ziff-Davis Comics titles, including "Skypilot" and "Captain Fleet."[1]
From the late 1940s onward, Borth worked extensively for the Ohio-based Catholic-oriented comic book publisher George A. Pflaum, whose most well-known title was Treasure Chest. Borth worked on such Treasure Chest features as "Chuck White," "Frumson Wooters," and many others. Beginning in 1963, and lasting until the title's cancellation in 1972, Treasure Chest also serialized a drawing course called "Draw-Along with Frank Borth."[1]
In the mid-to-late 1960s, Borth became active in the Montauk community, eventually becoming councilman on the East Hampton town board in 1968, a position which lasted until 1972.[1]