RECORD: McManus, Jane Parker, Pioneers West of Appalachia, 1984.
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Margaret Frobisher was a sister of Admiral, Sir Martin Frobisher of Queen Elizabeth's famous navy, and hero of the battle with the Spanish Armada in 1588.
Frobisher family was of Welsh origin who had moved to Yorkshire and became prominent there as early as 1350. Sir Martin Frobisher mentions the marriage of his sister, Margaret, to Anthony Jackson, in his will.