The only mention of Slade in Anne Arundel land records prior to 1740 was the deed of one negro to her son Bosun (?) Thomas Slade and one to her daughter Ann Slade by Elizabeth Slade.

According to Becky, William appears to have been her second husband, her first was Thomas Foster who died in 1711. In his will, William referred to her as “his present wife” which fits my theory that she was his second wife and not the mother of his children.