- [S31] A Genealogical and Heraldic Dictionary of the Peerage and Baronetage of the British Empire, Sir Bernard Burke, (London: Harrison, 1865, scanned original pages on www.ancestry.co.uk, 2004;), pp.946-947 (Reliability: 2).
- [S366] The Peerage of the British Empire as at present existing, Edmund Lodge, (25th ed., London 1856 (available on books.google.co.uk);), p.466 (Reliability: 2).
- [S112] Civil Registration Death Indexes 1837-, General Register Office, death registration of Charles Olfield [sic] Bowles, Wokingham 2c 201, September quarter 1862 (Reliability: 2).
- [S213] Hampshire Allegations for Marriage Licences Granted by the Bishop of Winchester 1689 to 1837, William J. C. Moens (ed.), (Volumes I-II. London: Harleian Society, 1893, available in digitised format on www.ancestry.co.uk;).
Bowles, Charles-Oldfield, of North Aston, co. Oxford, now resident in the p. of Eling, Esq., 21, & Elizabeth Montagu, of St. Marylebone, co. Middlesex, now resident in the p. of E., 21, at E., 1 Jan., 1816. The Rt. Hon. William-Sturges Bourne, of E., Esq., bondsman.