The collection is comprised of three archival boxes, the majority of its contents is correspondence. Personal Correspondence during the years 1804-1823 between Alexander and his mother and siblings are found in Box I. They include letters when he was away at school at Colchester, CT and when Horace and he moved to Canandaigua and opened a general store. Box II contains business correspondence when Alexander was a land agent and handled the affairs of the Boudinot Family. It also includes some of his personal finances. Box III deals mainly with legal documents that describe how his land was divided up. It also includes some correspondence between Alexander and his children.