Okay Wen - I started to add your Tonkin family to my database so that I could try to identify James.
But I got myself a little sidetracked!
I decided to see if I could find out a little about Edward Jeffery just to add a little to the picture.
Amazing the things you can find if you have a little bit of a look around!
You have not told us anything about Edward Jeffery so I don't know just what you know.
My search was based on what I found in the South Australian and Victorian Indexes.
Edward Jeffery died Hawthorn, Victoria 1918 age 87
Parents - William Jeffery and Eliza Ayres
The following appears to all belong to your family:-
12th June 1822 Christ Church, Spitalfields, Middlexes - by Licence
William JEFFERY, bachelor of St Martin Ludgate, London
Maria BOURNER, spinster of this Parish
Witnesses:- Saml ? Bourner, Ann Martha Jeffery
William son of William (Parish Clerk) and Maria JEFFERY of Pater Noster Row, Spitalfield was baptised at St Martin Ludgate 6th April 1823 (Born 16th March 1823)
Maria daughter of William (Parish Clerk) and Maria JEFFERY of Middlesex Place, Hackney Road was baptised at Saint Leonard, Shoreditch 23rd May 1824
George son of William (Printer) and Maria JEFFERY of Middlesex Place, Hackney Road was baptised at St Martin Ludgate 30th July 1825 (Born June 19th)
Maria JEFFERY of Crooked Lane age 26 was buried at St Martin Ludgate 26th January 1827
22nd November 1829 United Parish of St Magnus the Martyr and St Margaret New Fish Street - by Banns
William
JEFFERY of St Margaret New Fish St,
widowerEliza
AYRES of this Parish, spinster
Witnesses:- Thomas Gregory, R. Hazard
Edward son of William (Printer and Bookseller) and Eliza JEFFERY of Mark Lane, Fenchurch Street was baptised at St Martin Ludgate 15th May 1831 (Born 23rd March 1831)
1841 Census - St Paul Deptford, Kent
Borough of Greenwich
Parish of St Paul
Hamlet of Hatcham
Tukham Lane
William JEFFERY, 44, printer, not born in County
Eliza do., 33, born in County
William do., 18, printer, not born in County
George do., 15, printer, not born in County
Maria do., 17, not born in County
EDWARD do., 10, not born in County
Based on the information I had to start with I believe this must be the family of your Edward.
A few little presents on the way via email.
CT