as a way of dealing with his grief, hamilton plagued the disney family with incessant correspondence, sometimes writing two letters a day. lady campbell was another sufferer of the burden of mail, as only she and the disneys knew of his love for catherine.

How would the previous sentence be correctly capitalized?
As a way of dealing with his grief, Hamilton plagued the Disney family with incessant correspondence, sometimes writing two letters a day. Lady Campbell was another sufferer of the burden of mail, as only she and the Disneys knew of his love for Catherine.