Will Van Allen was an English Banjo performer and teacher at the turn of the century. Although he sold banjos under his name and probably designed some, the actual instruments are normally credited to Abbott. George Formby performed with a Van Allen Ukulele Banjo in some of his films.
One of his labels was 'The New Revelation Banjo' or sometimes just 'Revelation'
He was also a comedian and Will Van Allen was a professional name. His real name was William Dodds, born in Birmingham but moved to London.