In 1626 a Robert Barnham married Elizabeth Boiden in Hadleigh, Suffolk.
A list of the House of Commons in the Convention-Parliament, April 25, 1660 shows a Robert Barnham as the member for Maidstone. From: A list of the Convention Parliament, 1660, The History and Proceedings of the House of Commons : volume 5: 1713-1714 (1742), pp. 1-7. URL: http://www.british-history.ac.uk/report.asp?compid=37688.
Refer to the entry for his brother Francis regarding the death of the brothers on the same day.