1901 census Residents of a house 63 in Shankill Road (Court Ward, Antrim)
Fittis James 28 Male Boarder Church of Ireland
Davis Ellen 22 Female Daughter Church of Ireland
Davis Mary 23 Female Domestic Servant Church of Ireland
Dougherty Eliza 49 Female Domestic Servant Church of Ireland
Davis William 56 Male Head of Family Church of Ireland hairdresser
Davis Joy 13 Male Son Church of Ireland
Davis Jane 55 Female Wife Church of Ireland
http://www.census.nationalarchives.ie/pages/1901/Antrim/Court_Ward/Shankill_Road/947139/1911 Residents of a house 28 in Shankill Road (part of) (Court Ward, Antrim)
Davis William 66 Male Head of Family Church of Ireland
Davis Jane 66 Female Wife Church of Ireland
Davis Joy 22 Male Son Church of Ireland
Thompson David 6 Male Grand Son Church of Ireland
http://www.census.nationalarchives.ie/reels/nai001442556/William & Jane married 44 years,
11 children born alive, 4 still living. Quite a few to find then.....
PS Doesn't it help when you have an unusual name