The Astin family were still at Baxendale, New Accrington, on the 1851 census:
HO 107-2250 552/24
James Astin, 52, innkeeper and farmer, b. New Accrington
Nancy Astin, 52, b. Sawby Yorks
Isabella Astin, 23, a cripple, b. New Accrington
Ellen Astin, 18, employed in the house, b. New Accrington
John Astin, 15, b. New Accrington
Mary Astin, 11, b. New Accrington
William Astin, 8, b. New Accrington
Richard Heap and family were still at Bank Street:
Richard Heap, 37, shoemaker journeyman,
Mary Heap, 37,
Jane Heap, 17, cotton mill,
Henry Heap, 15, cotton mill,
Thomas Heap, 13, cotton mill,
Susannah Heap 10,
Richard Heap, 4,
Mary Heap, 2,
(all b. Accrington)
There were lots of other Heaps in the neighbourhood, but the only one I can see that comes close to what Gerry is looking for is this:
HO 107-2250 535/46
High Riley Farm, New Accrington (employed by the Cunliffe family)
John Heap, servant, either 17 or 19?, carter, b. New Accrington
Sorry I can't be sure of the age.
Steve