He traveled the world on commissions from many national magazines, and with the temporary rank of brigadier general, he toured the Far East for the U.S. Air Force. Those paintings hang in the Pentagon and the Air Force Academy.
Stahl is listed in "Who's Who in America", "The Blue Book" (London), Dictionary of International Biography", "Who's Who in American Art", "The Painter's Hall of Fame", "Who's Who in the East", "Who's Who in the World", and he was elected to the Illustrator's Hall of Fame. He was a member of the Society of Illustrators, Artists and Writers Club and the Player's Club, all of New York City.
In thirty years he illustrated over 750 stories for the "Saturday Evening Post", many books including limited editions of "Madam Bovary", and the 25th anniversary edition of "Gone With The Wind" which hang as part of the permanent collection of the Atlanta Library.
In addition to the many advertising campaigns for clients such as John Hancock Life Insurance Co., Bell Aircobra, International Silver and others, he was commissioned by MGM Studios to promote the film "Ben Hur". Other film commissions include; "Two for Texas" and "Song Without End".
At the age of sixteen, he was exhibiting in the International Watercolor Show at the Art Institute of Chicago where he later taught and lectured. He also taught at the American Academy of Art, The N.Y. Art Student's League, Brooklyn's Pratt Institute and numerous universities across the country. His paintings are included in museum collections throughout the world.
In 1965, his first book, "Blackbeard's Ghost" was published by Houghton Mifflin Co. and translated into Spanish and French. In 1969 it was made into a movie by Walt Disney. A sequel to "Blackbeard's Ghost" was "The Secret of Red Skull", also published by Houghton Mifflin.