Honeybun, I do not know if this helps but I believe that I have found William Hemming in the 1881 census living in Worcester.
William Hemming Head Male 40 Severn Stoke Worcester Genl Lab...
Charlotte Hemming Wife 38 SevernStoke .....
William Hemming Male 18 Stourbridge,Stafford Carter.
Mary j. Hemming Daur. 15 Stourbridge,Stafford.
James Hemming Son 12 SevernStoke Worcester Scholar.
Louisa Hemming Daur 10 Stourbridge Stafford Scholar.
Florence Hemming Daur 8 Sunderland Durham Scholar.
John H. Hemming Son 4 Sunderland,Durham Scholar.
They lived at 61 Astwood Road,Claines,Worcester,England.
My reasons for thinking that this is the same family are the ages and birthplaces of William and his younger brother John(lodging with William+his wife in 1901)also the family appeared to move around a lot,and one of Williams daughters was called Lotte,possibly named after his mother Charlotte, this is all guesswork of course,but it is worth looking at this family,because a lot of the pointers match,good luck in your search,Bethan