Blackham - lost in 1841

[ElizabethHerts]

I have this family in 1851. However, I can't find them in 1841, when Catherine would have been 3.

1851 Census
BIRMINGHAM, Warwickshire
HO107 piece 2051 folio 393 page 34
St Mark Street, Birmingham
Joseph Blackham Head Mar 36 Glass Cutter employ 5 men Staffordshire Handsworth
Sarah Blackham Wife Mar 37 Wife Worcestershire Kidderminster
Catherine Blackham Daur 13 Scholar Warwickshire Birmingham
Mary Blackham Daur 9 Scholar Warwickshire Birmingham
Louisa Blackham Daur 3 Scholar Warwickshire Birmingham
Thomas Blackham Visitor Unm 21 Clerk to Canal Co Staffordshire West Bromwich
Frederick Blackham Visitor Unm 26 Staffordshire West Bromwich

If anyone can spot them, I'd be very grateful.

[kiterunner]

There is a Mary Blackham baptism on FamilySearch 16 Feb 1841, date of birth 16 Apr 1840, St Phillips, Birmingham, parents Joseph and Sarah. So if this is the same Mary she should be 1 on the 1841 census. (I haven't managed to find them yet.) There is a matching birth registration and I can't see a death for her or another birth for a Mary who would be 9 in 1851, so I think her age is wrong in 1851.

[kiterunner]

The only Joseph Blackham I can find in Pigot's 1841 Directory of Birmingham is listed under "Manufacturers of Sundry Articles in Iron" Blackham Joseph (sad iron handle) Upper End.
I don't think that will be him, though.

If we had the address and his occupation from Mary's baptism or birth cert we would know where to look in 1841!

[kiterunner]

I've looked for them on ancestry, findmypast, UK Census Online and FreeCEN (which says it is 100% complete for Warwickshire in 1841) and no sign of them.

[ElizabethHerts]

Kate, many thanks for looking. They just don't want to be found.
I have tried all ways of looking, but nothing worked. I

[ElizabethHerts]

Catherine was baptised at St Mary's, Handsworth - 30th June 1837.

I wonder if they are entered under completely wrong surname, but I tried searching without a surname as well.

[kiterunner]

Originally Posted by ElizabethHerts

Catherine was baptised at St Mary's, Handsworth - 30th June 1837.

Yes, but the later children including Mary are baptised at St Phillip's Birmingham so they should be in that area in 1841 as Mary was baptised in April 1841. I wonder if they're on a page that's unreadable or something.