« Reply #1 on: Friday 26 March 10 14:00 GMT (UK) »
The photographer is a female one, Alice Lawton Jones (Born 1848 Holborn). She was at 238 Upper Street, Islington from 1911 - 1918. This fits with my own first thoughts on the photo from look of clothes, style etc, it is WWI era.
Bellenger, Sebire, Soubien, Mallandain, Molle, Baudoin - Normandy/London
Deverdun, Bachelier, Hannoteau, Martin, Ledoux, Dumoutier, Lespine, Montenont, Picard, Desmarets - Paris & Picardy/Amsterdam/London
Mourgue, Chambon, Chabot - Languedoc/London
Holohan, Donnelly, McGowan/McGoan - Leitrim, Ireland/Dundee, Scotland/London.
Gordon, Troup, Grant, Watt, McInnes - Aberdeenshire, Scotland/London