Hi, folks. On the 1851 census at 1 Hilton Street (Ancoats), I found:
Thomas Purslow, age 39, bricklayer, b. Shrewsbury
Anne Purslow, age 40, b. Wakefield
Elizabeth Bruff (visitor), age 5, b. Manchester
Seems to be a different Thomas from the one Marj is looking for? Though he's also from Shrewsbury and also a bricklayer...
There's no Hornett Street in Ancoats - not in 1851 anyway. The nearest I can see is Horn Street, and there were no Purslows living there.
Hope that helps.
Steve