Looking for Rose Ann Burns

Rose Ann BURNS born around 1869 in Warrenpoint Co Down, Married Thomas FISHER born around 1864 Dromore Co. Down The couple married on March 11, 1891 in the Parish of Banbridge. They appear in the 1911 Census with their 6 children at 9 Wesley St St. George's (Lisburn) Co Antrim.
Cannot find a birth for Rose or Roseann Burns, nor can I find a death of Roseann Fisher . Any help gratefully received.
Cheers McEveyGenealogy