Arthur Terker was an American composer active in the early to mid-20th century. He is credited with co-writing the song "His Majesty the Baby" in 1935, alongside Neville Fleeson and Mabel Wayne. This song was notably recorded by Ambrose and His Orchestra with vocals by Elsie Carlisle. Terker's work spanned various collaborations, contributing to the jazz and popular music scenes of his time. His compositions have been performed by notable artists such as Count Basie, Nat King Cole, and Mose Allison, among others. Terker's contributions to music include a variety of songs recorded by prominent orchestras and vocalists throughout the 1920s to the 1960s, showcasing his versatility and enduring influence in the music industry.