In that case, I would speculate that the James Crocker born 1820 c is the son of James Crocker born 1800 Milford. This 1820 James was a watchmaker and was born in either Milford or Hornsey. It is also possible that there was an Ebenezer.
The James and Ebenezer Crocker who appear in the 1841 Census are probably the sons of Robert Crocker, farmer.
There is the marriage of James Crocker, watchmaker, to Sarah Elizabeth Shergold on 15 Nov 1841 at St John's Paddington. Robert Crocker, farmer named as James' father. Witnesses are Matilda Crocker and Henry Nash.
James (without his wife) is with his parents in 1851 (see below).
There is also the marriage of Ebenezer Crocker, harness maker, to Jane Anne Sanders on 5 Nov 1848 at St Marylebone. Again, Robert Crocker, farmer named as the father. Witnesses are William Berridge? House and Sarah House.
Ebenezer, harness maker aged 25, and Jane Anne, waist coat maker aged 22, emigrate to Australia arriving at Port Phillip Bay on 28 Jun 1849. Ebenezer died in Williamstown, Victoria on 4 Mar 1894.
1851 Census
Hordle, Hampshire
HO107; Piece: 1666; Folio: 384; Page: 4
Robert Crocker Head Mar 61 Farmer 4 acres land Hants, Milford
Mary Crocker Wife Mar 66 Hants, Milford
James Crocker Son Mar 31 Watchmaker Hants, Milford
Alford Crocker Grandson 4 London, Whitechapel
There is a tree on Ancestry which shows William Henry Crocker as baptised in Milford on 30 Sep 1809 with Robert Radcliffe Crocker (baptised 28 Sep 1789, Milford according to the tree although familysearch has a date of 11 Oct 1789 at Pennington, Hampshire) and Mary Seir (baptised 18 Sep 1784, Milford) as his parents. A Henry Radcliffe Crocker (not the famous dermatologist) appears to be Robert Radcliffe Crocker's father.
Therefore, William Henry, James and Ebenezer Crocker appear to be brothers.
According to the tree on Ancestry, Robert and Mary had the following children baptised:
30 Sep 1809 - William Henry Crocker
28 Apr 1811 - Charles Crocker
21 Aug 1813 - Elizabeth Crocker
13 Jul 1815 - Emma Crocker
9 Jul 1817 - Ann Crocker
6 Sep 1819 - James Crocker
12 Dec 1821 - Ellen Crocker
18 Feb 1824 - Ebenezer Crocker
26 Mar 1826 - Philip Edward Crocker
6 Jun 1828 - Martha Crocker
What happened to the Charles Crocker baptised in 1811?
William Henry Crocker, the son, born 1837, seems to have become a cheesemonger and married a Mary Ann ?
Cheesemonger:
12 Argyle Street, West Ham, Essex
Death - Dec 1895 - West Ham 4a 103
He has at least 5 children: Amy Maryon; Susannah Frederica; Ernest Henry; Grace Violet and Beatrice Josephine.
Susanna married a William John G Chuck in 1900; Ernest Henry married Ethel Plummer and had Sydney R and Arthur S; Beatrice married Frank Wilberforce Varley and Grace married William James Humerston.
In his new marriage to Sarah Cornell, of the 4 children, I found 1 marriage of Mabel Radcliffe Crocker to Herbert Thomas Stonehewer in 1904. He was of 426 Upper Richmond Road East Sheen SRY. They had at least 1 child - Mabel Edna Stonehewer who died in 1996. She was born in 1905.
There have to be some descendants out there!!
William Henry Crocker (the son) was baptised at Holy Trinity Minories on 7 Aug 1836 and married Mary Ann Hodges at St Botolph without Bishopsgate on 10 Apr 1860.
Nigel