Complete Peerage, Location: Mid-Continent Library, Independence @ Vol. III, p. 292, Vol. VI, p. 158, and Vol. XI, p. 100-101,
plus footnotes.
The cited information was published by St. Catherine Press, 29 Great Queen St, Kingsway, W.C., 1959 (Ref: Vol. III, p. 292, Vol. VI, p. 158, and Vol. XI, p. 100-101,
plus footnotes.) The author/originator was G.E. Cockayne.