Hi
This is what I have for the children of William Hall and Mary Whitley
1) John Hall
1870–1932
BIRTH 1 MAY 1870 • Virginia, Cavan, Ireland
DEATH 5 AUG 1932 • Knocknaveigh, County Cavan, Ireland
2) William Henry Hall
1871–1945
BIRTH 22 DEC 1871 • Virginia, Cavan, Ireland
DEATH 5 MAR 1945 • Rathmore Lodge, Kells Parish, Ireland
3) Charles Hall
1873–1911
BIRTH 15 OCT 1873 • Knocknaveigh, Cavan, Ireland
DEATH BEFORE 1911 - not showing in 1901 or 1911 census -
1 of 3 children dead at 1911 census4) Maria Harriett Hall married name McClintock
1875–1953
BIRTH 18 JUN 1875 • Knocknaveagh, Cavan, Ireland
DEATH 28 OCT 1953 • Belfast, Ireland
5) Thomas Hall
1877–1885
BIRTH 24 APR 1877 • Cavan, Ireland
DEATH 25 FEB 1885 • Oldcastle, Ireland -
2 of 3 children dead at 1911 census6) George Whitley Hall
1879–
BIRTH 6 FEB 1879 • Cavan, Ireland
DEATH Unknown - alive at 1911 census - living with his family
7) Stephen Hall
1880–1885
BIRTH 4 DEC 1880 • Knocknaveigh, Ireland
DEATH MAR 1885 • Oldcastle, Ireland -
3 of 3 children dead at 1911 census - on same page of deaths as Thomas - perhaps died of the same thing Elizabeth Jane (Lizzie) Hall
1882–1974
BIRTH 1 NOV 1882 • Knocknaveigh, County Cavan, Ireland
DEATH 21 FEB 1974 • Auckland, New Zealand
9) James Hall
1884–1954
BIRTH 30 SEP 1884 • Oldcastle, Co Cavan, Ireland
DEATH 19 NOV 1954 • Knocknaveagh, Cavan, Ireland
10) Margaret (Gretta) Hall married name Cassidy
1888–
BIRTH 8 DEC 1888 • Oldcastle, Co Cavan, Ireland
DEATH Unknown - alive at 1911 census.
Sorry looks like your Thomas doesn't belong to this family