The 1911 census numbers (4 Born, 1 Living) don't add up... If I'm reading you right:
- Unknown b.1883 presumed died early - death maybe not registered if shortly after birth;
- James b.1892 d.1892;
- Thomas b. 1895 d.1895;
- Martha b.1898 died 1898;
- Annie the 9 year old in the 1911 census.
So provisionally 5 Born, 1 Living... have you found Annie's birth, is she definitely their biological daughter?