there is an Annie May Black born 1897 at Magherafelt here is the link to the source
https://familysearch.org/pal:/MM9.1.1/FBNP-32R
On the same web search area your able to look for your Thomas Bryan but you may need to know a bit more like the location as there are several that could be him.
Another option if you do know a little more than you have told us in your question, will be to find hin on the 1901 census
link to that is here
http://www.census.nationalarchives.ie/search/results.jsp?census_year=1901&surname=bryan&firstname=thomas&county=&townland=&ded=&age=3&sex=&search=Search&relationToHead=&religion=&education=&occupation=&marriageStatus=&birthplace=&language=&deafdumb=&marriageYears=&childrenBorn=&childrenLiving=
