New York origins. All three documented events for 1821 took place in New York State: a birth in Preble, Cortland County; a marriage in Petersburg, Rensselaer County; and the start of legal study in Brooklyn. None of the events occurred in Wisconsin. ↗ ↗ ↗
Life-course events of named individuals. The year's entries each mark a stage in the life of a named person or couple: a birth (Samuel J. Todd), a marriage (Mr. Davis of Alfred and Nancy Maxson/Maxon), and the beginning of professional training (Mr. Tallman/Tillman). ↗ ↗ ↗
Variant name records. Two of the entries record spelling variants: 'Maxson/Maxon' for Nancy's surname and 'Tallman/Tillman' for the law student, indicating uncertainty in the documentation. ↗ ↗