Here's what I think they all are:-
William - Head - Weaver
Jane - Wife
Margaret - Daughter - Weaver
Jane - Daughter
David? - Son - Weaver
Mary - Daughter - Piecer (someone who worked in a spinning mill employed to piece together any threads that broke)
William - Son
John - Son
Richard - Son
Jane - Grandaughter
John - Son-in-Law - Ag. Labourer