Henry W. Armstrong

Henry W. "Harry" Armstrong (July 22, 1879 – February 28, 1951) was an American boxer, booking agent, producer, singer, pianist and Tin Pan Alley composer.
His biggest hit was "Sweet Adeline", written in 1903 with Richard H. Gerard. His 1905 sentimental ballad "Nellie Dean" became the signature song of the British music hall singer Gertie Gitana, and subsequently a popular British pub song.