Who were their parents?

[KiwiChris]

Philip Cuthbert Anderson b Sept q 1848 Bethnal Green, and Clara Rebecca Margaret Anderson born June q 1851 Shoreditch, mmn Cuthbert for both births.
They were baptised together 7 May 1851 St Jude Bethnal Green, parents Minnie and Henry Anderson officer in East India Services.
https://www.ancestry.com.au/discover...=successSource

1851 Cuthbert Anderson is a visitor with Elizabeth Garrett
https://search.ancestry.com.au/cgi-b...E1ODQ0LjAuMC4w

1861 Philip C Anderson is a visitor in the household of Seth Watson
https://www.ancestry.com.au/discover...=successSource

1861 Clara (b1851 Calcutta) is a visitor in Oxford in the home of Rebekah BOUSFIELD
https://www.ancestry.com.au/discover...=successSource

At marriage Clara says her father was Henry ANDERSON clerk in Holy Orders
https://www.ancestry.com.au/discover...w/6668438:1623

1851 there is a Minie Anderson b c1828 London, married but no husband as a visitor in Shoreditch with William and Louisa Godwin
https://search.ancestry.com.au/cgi-b...E2MDQ5LjAuMC4w

Online family trees have a number of different people as the parents including Henry Lacon Anderson who was in the India Civil Service, but he married in India in 1841, Anne Grace Agnes Stuart and he is still married to her in 1871.

Philip Cuthbert Anderson (who is my research interest) arrived in New Zealand in 1865. He was educated at High Wycombe Grammar school, and was a school teacher when he first arrived here before being ordained in 1873.

He was said to be nephew of Octavius Lawes Woodthorpe Bousfield who was a surveyor in NZ, and who was a son of Rebecca Bousfield, who appears to be the same person that Clara is a visitor with in 1861

I cannot find an Anderson/Cuthbert marriage that fits, nor can I find anything more of Minnie or Henry.

Can anyone see what I, (and most of the family researchers) might have missed??!