The map shows the areas covered by the various family history societies which include parts of London in their area. Note that the London, Westminster & Middlesex FHS was formed in 2001 by the merger of the London & North Middlesex FHS with the Westminster & Central Middlesex FHS.
The list below lists the relevant society for each parish/area. Note that the list covers only those parishes which fall within Greater London and does not necessarily list all areas covered by a particular society.
Acton | WEST | Ashford | WEST | Barking | EofL | Barnes | ES | Barnet | LW&M | Battersea | ES | Bermondsey | ES | Bexley | NWK&W&D | BethnalGreen | EofL | Betchworth | ES | Bloomsbury | LW&M | Bow | EofL | Brentford | WEST | Bromley (Kent) | NWK | Bromley by Bow | EofL | Buckland | ES | Burstow | ES | Camberwell | ES | Carshalton | ES | Chaldon | ES | Charlton | W&D & NWK | Charlwood | ES | Cheam | ES | Chelsea | WEST | Chiswick | WEST | Chingford | Waltham For. | Chipping Barnet | LW&M | Chipstead | ES | Clapham | ES | Clerkenwell | LW&M | Covent Garden | LW&M | Cowley | WEST & HILL | Cranford | WEST | Croydon | ES | Dagenham | EofL | Deptford | NWK & W&D | Dulwich | ES | Ealing | WEST | East Bedfont | WEST | East Ham | EofL | Edgware | LW&M | Edmonton | LW&M | Eltham | NWK | Enfield | LW&M | Feltham | WEST | Finchley | LW&M | Finsbury | LW&M | Friern Barnet | LW&M | Fulham | WEST | Gatton | ES | Greenford | W & C | Greenwich | NWK & W&D | Hackney | EofL | Hammersmith | WEST | Hampstead | LW&M | Hampton | WEST | Hanwell | WEST | Hanworth | WEST | Harefield | LW&M & HILL | Harlington | WEST & HILL | Harmondsworth | WEST & HILL | Harrow | LW&M | Hayes (Kent) | NWK | Hayes (Mddx) | WEST & HILL | Heston | WEST | Hendon | LW&M | Highgate | LW&M | Hillingdon | HILL & WEST | Holborn | LW&M | Horley | ES | Hornsey | LW&M | Hounslow | WEST | Ilford | EofL | Isleworth | WEST | Islington | LW&M | Kensington | WEST | Kew | ES | Kingsbury | LW&M | Kingston | ES | Laleham | WEST | Lambeth | ES | Leigh | ES | Lewisham | NWK |
| Limehouse | EofL | Littleton | WEST | Ickenham | LW&M & HILL | London City | LW&M | Marylebone | LW&M | Merstham | ES | Mile End Old Town | EofL | Monken Hadley | LW&M | Mortlake | ES | Newington | ES | North Woolwich | EofL | Northfleet | NWK | Northolt | LW&M | Northwood | LW&M & HILL | Norwood (Mddx) | WEST | Norwood (Surrey) | ES | Nurstead | NWK | Nutfield | ES | Paddington | LW&M | Pancras | LW&M | Peckham | ES | Penge | ES | Perivale | LW&M | Pinner | LW&M | Plumstead | NWK & W&D | Poplar | EofL | Putney | ES | Ratcliffe | EofL | Richmond | ES | Rotherhithe | ES | Ruislip | LW&M&HILL | Sevenoaks | NWK | Shadwell | EofL | Shepperton | WEST | Shipbourne | NWK | Shoreditch | EofL | Soho | LW&M | Southall | WEST | Speldhurst | NWK | Spitalfields | EofL | St George Hanover Sq. | LW&M | St George in the East | EofL | St George Southwark | ES | St Giles in the Fields | LW&M | St Lukes | LW&M | St Martins in the Fields | LW&M | St Olave Southwark | ES | St Saviour Southwark | ES | Staines | WEST | Stanmore | LW&M | Stanstead | NWK?? | Stanwell | WEST | Stepney | EofL | Stoke Newington | EofL | Strand | LW&M | Stratford le Bow | EofL | Streatham | ES | Sunbury | WEST | Sutton | ES | Sydenham | NWK | Teddington | WEST | Theydon Bois | EofL | Tooting | ES | Totteridge | LW&M | Twickenham | WEST | Twyford Abbey | LW&M | Upper Halliford | WEST | Uxbridge | WEST & HILL | Wandsworth | ES | Wanstead | EofL | Wapping | EofL | Welling | NWK & W&D | Wembley | LW&M | West Drayton | WEST & HILL | West Ham | EofL | Westminster | LW&M | Whetstone | LW&M | Whitechapel | EofL | Willesden | LW&M | Wimbledon | ES | Woodford | EofL | Woolwich | W&D & NWK | Yiewsley | HILL & WEST |
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Also see List of Societies, showing which parishes they cover, provided by Brian Fisk (some of this is outdated information as it does not include the merger of the London & North Middlesex FHS and the Westminster & Central Middlesex FHS noted above). It includes societies for other parts of London, for example in Surrey and Kent. He also has an Alphabetical List of Parishes, showing which societies cover them.