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... [Thomas Greene] married secondly Mistress Winifred Seybourne [Seaborne] who arrived in Maryland some time during 1638.
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[*Mistress in the 17th century was the title given to an unmarried women of gentle birth who had acquired an estate and independent status. The statement that she was the widowed sister of Thomas Gerard is wholly unfounded.]
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The mother of his children has been the subject of much discussion, but of the two younger sons there is no question of their being the issue of Winifred his last wife. When he applied for land rights on September 15, 1647, among the claims was "100 acres more being the right of his wife Mrs. Winifred Seyborn for Transporting herself into the Province 1638." It is therefore proved that she emigrated and financed her passage in 1638. At the same time he proved rights for 50 acres each for his children "100 more for Transporting 2 children in the year 1644 vizt Thomas and Leonard Green." From the strict construction of the wording, there is no implication that Mistress Seyborne brought them over or was their mother. Mistress Seyborne came in 1638 and the boys came six years later. This point is important. They were less than 18 years of age in 1650 and they came out of England in 1644. There is no record of Thomas Greene returning to England, so the only inference that can be placed on the matter is that two older children were born in Maryland and had at one time been sent to England, presumably for a year of [sic] two of schooling. ...