The origins of Thomas Hatton, Secretary of State and attorney-general of the Province of Maryland under Cecil Calvert, have been subject of much speculation and conjecture. Thomas Hatton arrived in Maryland in 1648, with his wife, Margaret, and two sons, Thomas and Robert. A year later, he transported his brother Richard's widow, and her children William, Richard, Elizabeth, Barbara, Mary and Eleanor. Thomas Hatton was killed at the Battle of the Severn (sometimes called "last battle of the English Civil War") in 1655.
I recently discovered this examination of the English origins of Thomas and Richard Hatton, by a William Good; Mr Good presents persuasive and, it seems to me, conclusive evidence, relying on wills, pedigrees, and handwriting, to wit:
One Robert Hatton, curate of St Botolph's, Bishopsgate, London, was married in June of 1637 to Elizabeth Kinson, widow. One Thomas Hatton signed the marriage allegation as bondsman; this Thomas Hatton's signature is identical with that of Thomas Hatton, secretary of Maryland.
Further, a pedigree in Ormerod's History of Chester for Domville of Lymme shows Margaret, daughter of Edward Domville by Eleanor Leycester, as "wife of Richard Hatton, son of Robert Hatton rector of Lymme, remarried to ... Bankes". Margaret Hatton, widow of Richard Hatton, married Richard Banks. (see
http://archive.org/stream/historyofcountyp00orme#page/436/mode/2up)
If my sources are correct, Edward Domville has two descents from Edward I, as follows:
Edward Domville + Eleanor Leycester
Gilbert Domville + Margaret Sneyde (daughter of Sir William Sneyde of Bradwell)
Peter Domville + Margaret Carrington
Sir John Carrington + Ellen Warburton
Sir John Warburton + Jane Stanley
Sir William Stanley + Elizabeth Hopton
Thomas, Lord Stanley + Joan Goushill
Sir Robert Goushill + Elizabeth Fitzalan
Richard Fitzalan, Earl of Arundel + Elizabeth de Bohun
William de Bohun, Earl of Northampton + Elizabeth de Badlesmere
Humphrey de Bohun, Earl of Essex + Elizabeth of England
Edward I + Eleanor of Castile
alternate:
Sir William Stanley + Elizabeth Hopton
Sir Thomas Hopton + Eleanor Lucy
Sir Walter Lucy + Eleanor l'Arcedeckne
Sir Reginald Lucy + Margaret Mowbray
John de Mowbray, 4th Lord Mowbray + Elizabeth de Segrave
John de Segrave, 4th Lord Segrave + Margaret, Duchess of Norfolk
Thomas of Brotherton, Earl of Norfolk + Alice de Hales
Edward I + Marguerite of France
Richard Hatton's American descendants include F Scott Fitzgerald, Francis Scott Key, Charles Carroll (signer of the Declaration of Independence), and Julia Boggs Dent, wife of Ulysses Grant, among others.