There are 2 trees on Ancestry, each of which has a small amount of information----taken together, it seems that the Lengs and the Burtons travelled out to Australia at around the same time, not long after their wedding day.
One tree, "Gumforest", has a Margaret Jane Leng b 24 Oct 1862 in Sydney to George Leng (b 1828 Stockton on Tees, Yorks. died 10 Oct 1886 Marrickville NSW) and "Margaret Healey" (b 31 March 1833 Douglas, died 16 Feb 1871 Surrey Hills, NSW). I'm guessing that these dates have come from death certs ? Curiously, the date given for George Leng and Margaret Caley's marriage is correct, 31 July 1854, but the tree submitter has put Stockton on Tees. Does an Australian death cert include a date of marriage ?
If Ancestry hadn't recently put Manchester Marriages online, I wouldn't have discovered the name of George Leng's wife, because the BMD marriage index is messed up ---- the index entry for Margaret has a mistranscription of volume number, and George's surname is mistranscribed as Leny.
The other tree is "Burton Family Tree (GB)" which has Sophia "b 1831 Malew Landward" (where's that info likely to have come from ?) died 3 Feb 1901 Brisbane. The tree submitter has some details on Matthew Burton's family.
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I've just found these IGI entries:
Name: John Davis Burton
Gender: Male
Christening Date: 02 Sep 1855
Christening Place: St. John, Brisbane, New South Wales, Australia
Birth Date: 27 Dec 1854
Birthplace:
Death Date:
Name Note:
Race:
Father's Name: Mathew Burton
Father's Birthplace:
Father's Age:
Mother's Name: Sophia
Mother's Birthplace:
Mother's Age:
Indexing Project (Batch) Number: C00059-6
System Origin: Australia-EASy
GS Film number: 993966
Reference ID:
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Name: Elizabeth Golding Leng
Gender: Female
Christening Date: 22 Feb 1856
Christening Place: St. John, Brisbane, New South Wales, Australia
Birth Date: 31 May 1855
Birthplace:
Death Date:
Name Note:
Race:
Father's Name: George Leng
Father's Birthplace:
Father's Age:
Mother's Name: Margaret
Mother's Birthplace:
Mother's Age:
Indexing Project (Batch) Number: C00059-6
System Origin: Australia-EASy
GS Film number: 993966
Reference ID:
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Jean