"Croisadore" passed through Walter's son, William, to his grandson, Samuel, the father of John Dickinson. Each generation increased the landholdings, so that Samuel inherited on five farms in three Maryland counties and over his lifetime increased that to . He also bought the Kent County property from his cousin and expanded it to about , stretching along the St. Jones River from Dover to the Delaware Bay. There he began another plantation and called it Poplar Hall. These plantations were large, profitable agricultural enterprises worked by slave labor, until 1777 when John Dickinson freed the enslaved of Poplar Hall.