Mary, Tract Book (sale of land by U.S.) might provide you with place of residence when purchased, as well as others with the same surname purchasing land nearby. Deed Books can provide a wealth of information when the sale of the land is for an estate settlement, names of heirs, who they married, and where they lived. Have a family in Del Co deed book, some heirs were still in the county where the parents had migrated from, others had gone west to different states. Fantastic. Good luck. [email protected]