Wikipedia:
Milton Ager (b. October 6, 1893 in Chicago; † May 6, 1979 in Los Angeles) was a U.S. composer of Tin Pan Alley fame for songs such as Ain't She Sweet.
Ager began playing the piano self-taught in 1900, after his sister bought him a piano. He graduated from McKinley High School in New York City in 1907, and first worked as an intermission pianist in movie theaters and vaudeville. As a song plugger, he found employment with the music publishing company Watson, Berlin, and Synder in 1910. In 1913 he worked for Meyer Music Company in Chicago. Here he published the song Win her in the Old-Fashioned way with lyricist Charles A. Myers. During the summer he performed as a performer of his own songs in Indiana at Elwood and the Alexandria Opera House, among other venues. In addition to Win her in the Old-Fashioned way, he sang the songs Meet me in the vale of dreams, I wish I had a doll, and Mechanical Living man. In 1914 he moved to New York for publishing and began arranging and composing songs. In the early 1920s, he met songwriter Jack Yellen, with whom he had his first hit songs such as Everything Is Peaches Down in Georgia (1918) and Anything Is Nice If it Comes from Dixieland (1919), both of which were interpreted by Grant Clarke. Sophie Tucker popularized the Ager/Yellen songs Lovin' Sam (The Sheik of Alabam) (1922), Louisville Lou (1923), and Mama Goes Where Papa Goes (1923). Another Ager/Yellen song was I Wonder What's Become of Sally.
In 1927, Ager and Yellen hit the charts with five songs, Ain't That a Grand and Glorious Feeling, Crazy Word, Crazy Time, Is She Still My Girlfriend, and Forgive Me; the biggest hit of their collaboration that year was the song Ain't She Sweet, a hit number for Ben Ber-nie and, in the early 1960s, The Beatles. In 1929, Ager and Yellen moved to Hollywood, where they wrote I'm the Last of the Red Hot Mamas for Sophie Tucker in the film Hony Tonk (1929). After the theme song for the film Glad Rag Doll and the hit Happy Days Are Here Again (1928, known in Germany as Wochenend und Sonnenschein by the Comedian Harmonists), the Ager/Yellen team split. After film scores such as The Jazz King (1930) and Napoleon from the Broad-way (1934), Ager retired in 1944. In 1972, he was inducted into the Songwriters Hall of Fame.
Ager was married to film critic and journalist Cecelia Ager from 1922 until his death in 1979. The marriage produced two daughters, including journalist Shana Alexander (he reportedly composed Ain't She Sweet for her as a baby). Ager is buried in Westwood Village Memorial Park Cemetery in Los Angeles.
Note: Translated from a German version of Wikipedia into English.