Hi Viv - the scan of the 1851 Douglas entry on Ancestry shows 4 households under 60 Sand Street, as Mary said.
Schedule 140: (O'Hara family),
Schedule 141: Edward Jones Head Unmarried 60, Shoemaker b Patrick
Edward Jones nephew unmarried, 15, HG? Errand boy, b. Douglas (not Ireland),
Schedule 142: (McGarry - this was the entry b.Ireland)
Schedule 143: (Bridson).

The two Edward Jones were definitely in the same household.

Sue