Yes, some more precise information would be useful as to what you already have and what you would like to find out.
I have found the family you refer to in the 1901 census of Nelson, Halton, Ontario, Canada
Charles AYLWIN head mar b.29 Aug 1872 Ontario
Adline wife b.19 Sep (year unclear but in her thirties) India
Pearl G H PRINSEP step dau b.19 Mar 1886 India
Ruby G H PRINSEP step dau b.21 Aug 1887 Australia
Garnet T PRINSEP step son b.10 Jan 1889 India
Beryl A PRINSEP step son b.14 Aug 1891 England
Ethel M AYLWIN daughter b.11 Oct 1899 Ontario
+ Thomas NEWMAN, a domestice, farm servant b.Nov 1883 England
It says Adline emigrated in 1896 whilst the PRINSEP children emigrated in 1899

I can't find the family in the 1891 census but I have found this one (rather a coincidence wouldn't you think)

1891 - 46 St George's Place, Canterbury
William H J RICHARDSON head mar 33 Indian Staff Corps captain b.East India (BS)
Rose wife 28 b.Middlesex
Beryl H dau 5 b.East India (BS)
Peal H J dau 4 b.East India (BS)
Garnet H J son 2 b.East India (BS)
Edith L servant unm 19 nurse b.Middlesex
(not sure about the initials for middle names)
RG12/708 folio 38 page 15
Beryl PRINSEP gives his place of birth as Isle of Wight, England, crossed out and replaced with Bexleyheath, England (14 Aug 1893) on his WW1 CEF paper. Next of kin, mother, Adeline AYLWIN dated 15 March 1917
The birth registration of Ruby L PRINSEP in Australia 1885 gives her parents as Adeline M and Thoby
http://www.bdm.nsw.gov.au/cgi-bin/Index/IndexingOrder.cgi/search?event=birthsDo you have a baptism or birth certificate for Arthur Beryl in the Dartford district 1891 which might give more precise information?
Casalguidi
