SOURCES: Family History Libary, Salt Lake City, UT, LDS Ancestral file 8MLZ-ZF, "Ancestors/Descendants of Royal Lines" (Contributors: M. Thompson, Reynaud de Paysac, H.R. Moser <Burke Peerage>), F.L. Jacquier, O.Guionneau, E. Polti, A.Terlinden <Genealogy of the existing British Peerage, 1842, L. Orlandini, R. Dewkinandan, and E. Lodge>). "Stimpson Family", Cory Stimpson at AWTP.
Also: "Ancestors/Descendants of Herbastus de Crepon" http://www.geneastar.org.