Somehow Henry Hartford's profile was added by Martha (Dandridge) Washington, 1st First Lady of the United States on July 16, 2007 and he has three half sisters, which the thing is his dad Frederick Calvert, 6th Baron Baltimore never married his mistresses
According to https://en.wikipedia.org/wiki/Frederick_Calvert,_6th_Baron_Baltimore
Calvert had two children by Hester Whelan:[1]
Henry Harford (1758–1835), the last Lord Proprietor of Maryland.
Frances Mary Harford (1759–1822)[16][17] who married William Frederick Wyndham (1763–1828) on 21 July 1784. Their son George Wyndham became the 4th Earl of Egremont.[citation needed]
In 1765, he fathered twin daughters with Elizabeth Dawson of Lincolnshire, Sophia and Elizabeth Hales.[17]
He had another daughter, Charlotte Hope, born in Hamburg in 1770, with Elizabeth Hope of Münster, Germany.[1][17]
More research is needed, but I don't think the partners of Frederick have the correct maiden names. The profiles are locked. Is there any way we can unlock them and make them maiden names? I will put something on them for a source.
