Question: Joseph Dubin composed the soundtrack for the RKO Radio film released in what year?

Context articles: Daddy Mine
It's All True (film)
RKO Pictures
Living on Love
Joseph Dubin
Bert Gilroy
List of RKO Pictures films
The Adventures of Ichabod and Mr. Toad
Street Girl
RKO General

Daddy Mine is a World War I song released in 1918.
 Lew Wilson wrote and Alfred Dubin composed this ballad.
 It was published by M. Witmark & Songs in New York, New York.
 It was written for both voice and piano.
It's All True is an unfinished Orson Welles feature film comprising three stories about Latin America.
 "My Friend Bonito" was supervised by Welles and directed by Norman Foster in Mexico in 1941.
 "Carnaval" (also known as "The Story of Samba") and "Jangadeiros" (also known as "Four Men on a Raft") were directed by Welles in Brazil in 1942.
 It was to have been Welles's third film for RKO Radio Pictures, after "Citizen Kane" (1941) and "The Magnificent Ambersons" (1942).
 The project was a co-production of RKO and the Office of the Coordinator of Inter-American Affairs that was later terminated by RKO.
RKO Pictures Inc., also known as RKO Radio Pictures and in its later years RKO Teleradio Pictures, was an American film production and distribution company.
 It was one of the Big Five studios of Hollywood's Golden Age.
 The business was formed after the Keith-Albee-Orpheum (KAO) vaudeville theatre circuit and Joseph P. Kennedy's Film Booking Offices of America (FBO) studio were brought together under the control of the Radio Corporation of America (RCA) in October 1928.
 RCA chief David Sarnoff engineered the merger to create a market for the company's sound-on-film technology, RCA Photophone.
 By the mid-1940s, the studio was under the control of investor Floyd Odlum.
Living on Love (1937) is a feature film released by RKO Radio Pictures.
 The film is a remake of the RKO film "Rafter Romance" (1933).
Joseph Simon Dubin (June 2, 1900 – January 16, 1961) was an American composer and orchestrator, scoring and orchestrating more than 200 motion pictures during his career.
 His brother, Al Dubin (1891 Zürich-February 11, 1945 New York City) was an American songwriter, lyricist, soldier and actor.
 Joseph Dubin is best known for composing the soundtrack for the Walt Disney films, "Cinderella", "Alice in Wonderland", "20,000 Leagues Under the Sea", and "The Adventures of Ichabod and Mr. Toad".
 Durbin also orchestrated and scored many television series including "Zorro" and "The Mickey Mouse Club".
Bert Gilroy (May 7, 1899 – January 16, 1973) was an American film producer of the 1930s and 1940s.
 Born in Arizona in 1899, he began his Hollywood career behind the scenes on the 1926 silent film "Pals in Paradise".
 In 1934, he began producing by overseeing short films for RKO Radio Pictures with "Bandits and Ballads", a musical short.
 After four years of producing shorts, he would be given a chance at producing a full-length feature at RKO, with the western film, "Gun Law".
 Later that year he would produce "Painted Desert", a remake of the 1931 film "The Painted Desert" for which he was the assistant director, and was memorable as containing the first speaking role for Clark Gable.
 During the decade he was active, he would produce over 150 short and feature films.
 His feature films would overwhelmingly consist of westerns, many of which would star RKO's leading western star of the 1930s, Tim Holt.
 Gilroy spent almost his entire career at RKO studios, after its creation in 1929.
 His last credited film on which he was an associate producer on in 1946, "Hollywood Bound" was a compilation of three 1930s Betty Grable RKO short subjects
RKO (Radio-Keith-Orpheum) Pictures (also known as RKO Productions, Radio Pictures, RKO Radio Pictures, RKO Teleradio Pictures and, for a short time, RKO Pathé) is an American film production and distribution company.
 The original company produced films from 1929, the year after its inception, through its dissolution in 1959.
 RKO is an acronym for "Radio-Keith-Orpheum", created when RCA orchestrated a merge between Film Booking Offices of America (FBO) and Keith-Albee-Orpheum (KAO), and was officially announced on October 23, 1928.
 Within two years, the company added Pathé Exchange to the organization, which included the new company's studios in Culver City, its film laboratories in New Jersey, Pathé News, and the company's distribution networks in Europe and the United States.
The Adventures of Ichabod and Mr. Toad is a 1949 animated package film produced by Walt Disney Productions and released by RKO Radio Pictures.
 The film consists of two segments – the first is based on the 1908 children's novel "The Wind in the Willows" by Scottish author Kenneth Grahame, and the second is based on the 1820 short story "The Legend of Sleepy Hollow," called "Ichabod Crane" in the film, by American author Washington Irving.
Street Girl is a 1929 pre-Code musical film directed by Wesley Ruggles and starring Betty Compson, John Harron and Jack Oakie.
 It was adapted by Jane Murfin from "The Viennese Charmer", a short story by William Carey Wonderly.
 While it was the first film made by RKO Radio Pictures, its opening was delayed until after "Syncopation", making it RKO's second release.
 It was very successful at the box office, accounting for almost half of RKO's profits for the entire year.
RKO General, Inc. was the main holding company through 1991 for the noncore businesses of the General Tire and Rubber Company and, after General Tire's reorganization in the 1980s, GenCorp.
 The business was based around the consolidation of its parent company's broadcasting interests, dating to 1943, and the RKO Pictures movie studio General Tire purchased in 1955.
 The holding company acquired the name of RKO General in 1959 after General Tire dissolved the film studio.
 The original RKO Radio Pictures, Inc. corporation name was then changed to the present day RKO General, Inc.
 Current RKO Radio Pictures copyrights are held by this corporate name.
 Headquartered in New York City, the company operated six television stations and more than a dozen major radio stations around North America between 1959 and 1991.