| Historical records |
| | c 1795 |  | Part of the 1 inch to 1 mile map of Sussex produced in 1795 by William Gardner and Thomas Gream | | Blackham Mill | |
| | c 1825 |  | Part of the 1 inch to 1 mile map of Sussex produced in 1825 by Christopher and John Greenwood | | Blackham Mill | |
| | 6th Jun 1841 | Census | George Chapman, M, Head, age 40 to 44, born Sussex; occupation Miller | George Chapman | Atherfolds Mill | 1841 Census
Withyham, Sussex | | | Elizabeth Chapman, F, [Wife], age 55 to 59, born Sussex | Elizabeth Chapman [Reynolds] | | | | | Elizabeth Atherfold, F, age 75 to 79, born Sussex; occupation independent | Elizabeth Atherfold [Chapman] | | | | | Shadrick Baldwin, M, age 55 to 59; occupation: servant | Shadrach Baldwin | | | | | Harriett Mercer, F, age 15 to 19, born Sussex; occupation Servant | Harriett Mercer | | |
| | 30th Mar 1851 | Census | Head, employs 1 person, occupation: farmer | George Chapman | Blackham | 1851 Census
Withyham, Sussex | | | Wife | Elizabeth Chapman [Reynolds] | | | | | Servant; occupation House Servant | Harriet Mercer | | | | | Servant; occupation: farm labourer | Shadrach Baldwin | | |
| | 1867 | Directory entry | Harding Wm. miller, miller, Blackham mill | | Blackham mill | Post Office Directory |
| | 1874 | Directory entry | Harding Wm., miller, Blackham mill | | Blackham mill | Post Office Directory |
| | c 1875 |  | Part of the 6 inch to 1 mile map of Sussex produced in 1875 by Ordnance Survey | | Blackham Mill | |
| | 3rd Apr 1881 | Census | William Harding, M, Head, married, age 76, born Surrey; occupation: miller | William Harding, farmer | Blackham Mill | 1881 Census
Withyham, Sussex | | | Mrs Harding, F, Wife, , age 71, born Berkshire | Ann Harding [Coleman] | | | | | Caroline Harding, F, Daughter, single, age 47, born Berkshire | Caroline Harding | | | | | James Harding, M, Son, single, age 41, born Berkshire; occupation: miller | James Harding, farmer | | | | | Hubert Harding, M, Son, single, age 32, born Berkshire; occupation: miller | Hubert John Harding | | | | | Lavinia Harding, F, Daughter, single, age 30, born East Grinstead | Lavina Harding | | |
| | 1882 | Directory entry | Harding William, miller, Blackham Water mill | | Blackham Water mill | Kelly's Directory |
| | 5th Apr 1891 | Census | George Bean, M, Head, married, age 44, born Mayfield, Sussex, occupation: miller | George Bean, miller | Blackham Mill | 1891 Census
Withyham, Sussex | | | Sarah Bean, F, Wife, married, age 43, born Burstow, Surrey | Sarah Bean | | | | | Walter Bean, M, Son, single, age 16, born Burstow, Surrey, occupation: miller | Walter Bean | | | | | Alice Ellis, F, Adopted daughter, single, age 8, born London | Alice Ellis | | | | | Frank Harman, M, Brother-in-law, single, age 24, born Burstow, Surrey, occupation: visitor | Frank Harman | | |
| | 2nd Apr 1911 | Census | George Bean, M, Head, married, age 64, born Mayfield, Sussex; occupation: miller | George Bean, miller | Blackham | 1911 Census
Withyham, Sussex | | | Sarah Bean, F, Wife, married 37 years, age 63, born Burstow, Surrey | Sarah Bean | | | | | Charles Baldwin, M, Servant, single, age 17, born Withyham, Sussex; occupation: general helper loader | Charles Baldwin | | |
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