Family tradition states that the American progenitor, Benjamin Congdon. immigrated with his brother John. Their father is believed to have been also a John Congdon, of Pembrokeshire. Wales, who was said to have married the ('aughter of the Earl of Pembroke.
>Comment: his mother was not Lady Mary Herbert who died unmarried. Ref: http://www.cracroftspeerage.co.uk/pembroke1551.htm
