Gregg 1980, p. 126: Marlborough was also to settle the number of soldiers and sailors each coalition partner was to contribute, and supervise the organisation and supply of these troops. In these matters he was ably assisted by Adam Cardonnel and William Cadogan. Gregg, Edward (1980). Queen Anne (2001 ed.). Routledge & Kegan Paul. ISBN978-0-7100-0400-0.
Gregg 1980, p. 118 Marlborough himself was not keen on the marriage but Sarah, enchanted by Sunderland's Whig ideology and intellectual prowess, was decidedly more enthusiastic. Gregg, Edward (1980). Queen Anne (2001 ed.). Routledge & Kegan Paul. ISBN978-0-7100-0400-0.
Gregg 1980, p. 349 Marlborough threw the letter on the fire in disgust, but Oxford's memoranda contains an imperfect draft copy. Gregg, Edward (1980). Queen Anne (2001 ed.). Routledge & Kegan Paul. ISBN978-0-7100-0400-0.
Parker 1747, p. 214. Parker, Robert (1747). Memoirs of the most remarkable military transactions from the year 1683 to 1718. Containing a more particular account than any yet published of the several battles, sieges, etc. ... By Captain R. Parker ... Published by his son. S. Austen.