- [S103] 1861 Census Returns of England and Wales, General Register Office, (7 April 1861;), RG 9., RG 9/1030 ff.29-30 pp.20-21 (Reliability: 3).
Poplar Row [or possibly High St], Balsham
John Dean, Head, Mar, 54, Gardener, Suffolk Balsham
Elizabeth Dean, Wife, Mar, 57, Cambre Balsham
Robert Plumb, Father Law, Widr, 79, Pauper, Cambre Weston Colville
- [S102] 1851 Census Returns of England and Wales, Home Office, (30 March 1851;), HO 107/1761 f.384B (Reliability: 3).
Robert Plum, H, M, 68, Ag Lab, CAM Carlton
Ann Plum, Wf, M, 72, CAM West Wickham
- [S195] International Genealogical Index, The Church of Jesus Christ of Latter-Day Saints, (www.familysearch.org;), baptism of Elizabeth Plumbe, child of Robert Plumbe and Ann, 26 Feb 1804, Great Wilbraham, Cambridgeshire (extracted from parish registers) (Reliability: 2).
- [S100] A Special Corner of England Website, focusing on Castle Camps, Shudy Camps, Bartlow, Horseheath and West Wickham in Cambridgeshire, Marlene Williamson, (http://www.rd29.net/cc/;), marriage of Robert Plume bac otp and Ann Carter sp otp, witnessed by Mary Dowse and Dennis Taylor, 25 Jul 1801, Balsham (Reliability: 2).