HI Truane
I have found your Joseph for you in the 1851 census listed as Brother in law - what a bonus
40 Skinner Lane, North Leeds
Robert Blackburn circa 1815 Wakefield Married head
William Blackburn circa 1825 Halifax Married Brother i
Joseph Cockcroft 1820 Leeds Married Brother in law
Mary Cockcroft 1822 Wakefield married sister
Jane Ann Cockcroft 1846 Leeds
George Cockcroft 1847 Leeds
John William Cockcroft 1850 Leeds
Wendy