Nys, Johannis.Silversmith. Will. Made Feb. 26, 1733. Heirs: wife not named; dau. Letitia Hall. Exec'x, dau. Letitia Hall. Wits., Mary Irons, James McMillan. Prob. April 8, 1734. Arch. vol. A38, page 6. Reg. of Wills, Liber H, folio 48.
Valinger, Leon de, comp. Calendar of Kent County, Delaware Probate Records, 1680-1800. Westminster, MD, USA: Familyline Publications, 1944
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