Richard,
I don't know if this post is still relevant,but from 1851 Chorlton on Medlock I found this
1 Hill Street, Chorlton on Medlock
Robert Alty Head M 2.. Carter Lancashire
Ann Alty Wife M 36 Domestic Cheshire
William Alty Son U 10 Scholar Lancashire
Thomas Alty Son U 11 Scholar Lancashire
Robert Alty Son U 6 Scholar Lancashire
John Alty Son U 2 Lancashire
Joseph ....ight Lodger U Carter
Philip Keswick Lodger U Labourer
Hope this helps
Regards, Dave