I think I found her on the National School Register for Aycliffe National School with the following details:
Isabella Chapman born 19 Jan 1895 father Edward Chapman Thompson St – 29 May 1901 removed from school
On the same page there was also:
Frederick Walton (not Chapman!) born 13 Feb 1895 father Edward Chapman 23 Thompson St – 29 May 1901 removed from the school.
Curiouser and Curiouser.