vol 3, pg 239, Paul's "Scots Peerage"
pg 149, Series 1, vol 3, "English Origins of New England Families, From the New England Historical and Genealogical Register", pub 1984
pg. 606, "A Genealogical History of the Dormant, Abeyant, Forfeited and Extinct Peerages of the British Empire" by Sir Bernard Burke, published 1883