Best to work back step by step through available records rather than leading yourself, and us, on wild goose chases.
1871 census - Ellen & children Edward, Hannah, Minnie born Ireland
1881 census- Ellen & children Edward, Hannah, Mary C. born Belfast
1891 census - Edward as born Belfast and mother born [County] Down
Edward's birth certificate will confirm details father's occupation.
Birth: Edward James Wyatt, 1864, Belfast registration district, volume 16 page 270