Andrew worked for the Oregon Shortline Railroad, a subsidiary of Union Pacific, rising from dispatch clerk to division superintendent.
One version asserts that his mother, while traveling on a train between California and Idaho, met the friend of a Hollywood designer, possibly from the Robert Brunton studios.
[7] Through this letter, Stevenson was able to get jobs as a sketch artist during school breaks, impressing those he worked with sufficiently that he was able to begin building his career.
Klenowsky became aware of Stevenson's artistic abilities and interest in design, and she introduced him to Clément Henri Andreani, known professionally as André-ani.
In 1924, Stevenson began working as a sketch artist for Norma Talmadge’s production company, and he was also allowed to submit his own designs.
[10] When Andre-ani and MGM parted ways, Stevenson found work as a sketch artist and occasional designer at Fox.
Stevenson's first contract as a designer was signed in 1928 with First National Pictures, Inc., then one of the largest theater chains and movie studios in the United States.
Warner Brothers had recently gained controlling interest in First National and installed one of their production executives, Hal Wallis, as studio head.
They had also brought Bernard Newman over from Bergdorf Goodman department store in New York to dress Ginger Rogers, one of their biggest stars.
When Plunkett departed, Newman was required to deal with the more mundane costuming chores in addition to his exclusive designing assignments and he hired Stevenson to sketch out his ideas.
Stevenson toiled as the nominal head of RKO's costume and wardrobe department from late 1936 to early 1949, enduring the same difficult conditions that Plunkett had before him.
For instance, Walter Plunkett's special relationship with Katharine Hepburn ensured his return to RKO as a guest designer for all three of her films shot in 1936.
Citizen Kane and The Magnificent Ambersons (1942), two highly influential and respected movies in classic American cinema, were the eventual results of his efforts.
Both pictures required thorough research to accurately represent the periods depicted, though Stevenson faced many difficulties in carrying out his original intentions.
He had learned from his predecessors that the ready-to-wear market could provide more security and money so like Plunkett and Newman before him, he left RKO to try his fortunes elsewhere, staying until his contract ended with the completion of filming on Journey Into Fear (1943) in March of 1942.