We have a large number of biographies of teachers of one sort or another. To find them, search in the catalogue under subject keyword using the words teachers biography.
Some of the books about prominent teachers you can find are:
Accidental Life (about Phoebe Meikle)
Lewis Carroll: A Biography
The Enigma of Sister Mary Leo
Learning Our Living: a Teaching Autobiography (about Charmaine Pountney)
Sylvia! The Biography of Sylvia Ashton-Warner | 
