The ones I referred to above are:
In one household: Mathew Alison (1)
A couple of households further down the same page: William (5), Robert (12) and John (14)
So that gives you:
- JOHN ALLISON - Birth: 10 JAN 1828 Lochwinnoch, Renfrewshire 1841 census - Lochwinnoch, age 14
ROBERT ALLISON - Christening: 20 JUN 1830 Lochwinnoch, Renfrewshire 1841 census - Lochwinnoch, age 12
JEAN ALISON - Christening: 24 FEB 1833 Lochwinnoch, Renfrewshire 1841 census - Airdrie, age 9; with parents
WILLIAM ALISON - Christening: 21 JUN 1835 Lochwinnoch, Renfrewshire 1841 census - Lochwinnoch, age 5
MATHEW ALISON - Christening: 13 NOV 1837 Lochwinnoch, Renfrewshire presumed deceased by 1840
MATHEW ALISON - Christening: 05 JAN 1840 Lochwinnoch, Renfrewshire 1841 census - Lochwinnoch, age 1
HELEN ALISON - Christening: 26 MAR 1843 Lochwinnoch, Renfrewshire born after 1841 census
MARGARET ALISON - Christening: 17 AUG 1845 Lochwinnoch, Renfrewshire born after 1841 census
All the best,
AndrewP