You should be seeing a Google Map here.
If you can't, you can try these map links instead:
Cranham : Cranham: All Saints
Cranham : St Luke's Cranham with Moor Lane Church
Harold Hill : Harold Hill: St Paul
Havering-att-Bower : Havering-atte-Bower: St John
Hornchurch : Holy Cross Hornchurch
Hornchurch : Hornchurch, Elm Park: St Nicholas
Hornchurch : Hornchurch: St Andrew
Hornchurch : Hornchurch: St George
Hornchurch : Squirrel's Heath: All Saints
Hornchurch : The Church on Sutton's Farm
Rainham : Rainham: St Helen & St Giles
Rainham : South Hornchurch: St John & St Matthew
Romford : Collier Row: St James
Romford : Collier Row: The Ascension
Romford : Collier Row: The Good Shepherd
Romford : Gidea Park: St Michael & All Angels
Romford : Harold Hill: St George
Romford : Harold Wood: St Peter
Romford : Noak Hill: St Thomas
Romford : Romford, Rush Green: St Augustine of Canterbury
Romford : Romford: St Agnes
Romford : Romford: St Alban
Romford : Romford: St Andrew
Romford : Romford: St Edward the Confessor
Romford : Romford: St John The Divine
Upminister : Cranham Park: Moor Lane Church
Upminster : Hornchurch: St Matthew
Upminster : North Ockendon: St Mary Magdalene
Upminster : Upminster: St Laurence
Wennington : Wennington: St Mary & St Peter