Hi Andrea,
I have just come back from the archives, searched rootschat for your post so I could reply, and discovered that you already had much of the BMD info I found.
Nevertheless I will list what I found although some of it will be duplicated from previous lookups.
Catherine Casey died 1st July 1935, father Michael Donohoe (spelling as per fiche), mother Ellen Clifford.
Irving Sydney Crow married Hannah Chamberlain 22 Dec 1888.
Hannah Crow died 26 Jan 1894 (father William Chamberlain, mother Sarah Ann Goddard).
Irvin Sydney Crow married Sarah Elizabeth Janson 4th April 1899.
Sarah Elizabeth Crow died 11 Dec 1916 (father Laurens Janson, mother Sarah Boyle).
Irvin Sydney Crow married Maud Kathleen Victoria Wright 1st Feb 1918.
Irvin Sydney Crow died 17 April 1929, father Robert Crow, mother Elizabeth Hall.
Maud Crow died 10 Feb 1948 (father Percival George Wright, mother Mary Conniff)
Irvin's children with Hannah:
Ada Sophia Violet b 28 May 1890
Louie Linda Lily b 10 Nov 1893 (Lowie married Patrick Byrne on 2 Oct 1922)
Irvin's children with Sarah:
Hilda Mercia b 19 Mar 1900 (Hilda married George Dicker 18 June 1921)
Irvin Laurens b 1 Jan 1905 (Irvin married Myrtle Jane Smith 21 June 1926)
Dulcimer Theddlethorpe b 1 Feb 1903 d 8 Feb 1916
Leila Edith b 25 July 1912
Myra Catherine b 7 Mar 1910 (Myra married Arthur West 20 Mar 1933)
Una Corelli b 14 OCtober 1906
Irvin's children with Maud:
none found
I suppose you could order Irvin's death certificate to glean more information.
Had a look at the immigration books.
This may be Irvin:
Crow Irwin S, age 19, ship Dorunda, arrived 1 Aug 1885, IMM/120, p 239, Z1962
The film give little more information except that his "status or calling" was "L" which I think is labourer. And he is from Lincoln.
These two were on the same ship, also from Lincoln and both domestic servants:
Clara Crow age 23 and Edith Crow aged 15.
I hope this information is of some help to you. Let me know if you need further lookups.