The place name Leyton is believed to be named as ‘the town on the Lea’. The river Lee, Ley or Lea has various spellings in the historical record. Leytonstone is a town that grew up by the roman milestone marking the road from London (Londinium) to Colchester (Camulodunum) one roman mile from Leyton. The Leyton & Leytonstone Historical Society has a wealth of information on the history of the area.
Wikipedia article on Leytonstone with a list of notable people with connections to the area including Sir Alfred Hitchcock, David Bailey, Graham Gooch, Meera Syal, Tony Robinson, Derek Jacobi, Jonathan Ross, Steve Harris, David Beckham and Damon Albarn.
Leyton & Leytonstone Historical Society Project on World War 1
Leytonstone on Film
The Wonders of South Leytonstone by John Rogers
Film of Leytonstone from 1938
Hollow Ponds Leytonstone by John Rogers