Background
He was the son of Colonel Julian Allen, né Alschwang, and Mary Abby Hussey.
He was the son of Colonel Julian Allen, né Alschwang, and Mary Abby Hussey.
He attended Phillips Academy, Andover (Class of 1874) and graduated from Harvard University in 1878. He studied law, and although admitted to the bar, he never engaged in practice.
He worked for the United States Department of State for many years. In 1893 he inaugurated and was the Chief of the Bulletin of Rolls and Library as a medium for the publication of catalogues, indexes, and important papers of the national archives.