Hope you are still in touch with this site, your posting was a long time ago. I have found the following in Wicklow Town, and can bring you up to date if you require further information.
Children of John Vickers and Maryanne Dunn (sic).
1 Catherine Vickers born 8th Feb. 1870
2 Rosanna Vickers b 8th February 1870 Wicklow (twins)
3 Thomas Vickers b 24th June 1882
4 Annie Vickers b c 1886
Census 1901 b3 Blainroe Lower 61/16
James Gregory son-in-law, Roman Catholic, could not read or write, age 23 yrs married, born Wicklow.bc 1878/75
c 1911 Kate Grogory married 11 yrs 3 children born 3 alive
c 1901 b3 Blainroe Lr 61/16 Kate Gregory, age 20 Married b Wicklow
c 1911 b5 Dunbur Lower 64/19 kate Gregory age 32; married 11 yrs 3 children born & 3 living.
JMF