1861 census Liverpool
82 Rathborne St.
Thos Callow head 56 engine driver born IOM
Mary Callow wife 52 born IOM
Emily Margaret daur 10 scholar born Liverpool
Rebecca Jane daur 8 scholar born Liverpool

1841 census Liverpool
Thomas Callow labourer 35 N
Mary Ann Callow 30 N
Mary Callow 10 Y
Anne Callow 5 Y
Thos Callow 4 Y
Willm Callow 2 Y
John Callow 6 mos y

Don't see them on 1851 census

Based on 1851 census, closest christening date for Thomas Callow is either:
Thos Callow chr. 1804 St. George's, Douglas, parents Thos. callow, Ann Carran
or

Thos. Callow chr. 1806 Jurby, parents Thomas Corkill, Mgt. Callow