Frederic Knight Logan, known as "America's Waltz King," was an American composer, pianist, director, and instructor born on October 15, 1871, in Oskaloosa, Iowa. He was the only child of John F. and Virginia Knight Logan. After losing his father at a young age, Logan was raised by his mother, a soprano, who provided his initial musical training. He demonstrated a natural talent for music, playing the piano "by ear" from an early age.

Logan's musical education continued at the College of Music in New York. He gained professional experience working with Jefferson de Angeles' Opera Company and served as the musical director for a New York production of "The Wizard of Oz." He later became the musical director for actress Maude Adams, accompanying her on tours for productions like "The Little Minister" and "Quality Street."

Logan is best known for the "Missouri Waltz," which he rearranged into its popular form around 1912. The song's melody reportedly originated from a black man in Missouri, and Logan's version was published by the Forster Publishing Co. in 1914. In addition to the "Missouri Waltz," Logan composed "Pale Moon (An Indian Love Song)" in 1920, with lyrics by Jesse G. M. Glick. The song was recorded by artists such as Lucy Isabelle Marsh, Paul Whiteman, Bing Crosby, and Frank Sinatra.

Frederic Knight Logan passed away on June 11, 1928, leaving behind a legacy as a celebrated composer and musician.