Scratched my head over this one Ian and wonder if it may have been a little later when the photographer Boning was in partnership with Small. If that had been the case the following family from Greenwich might suit.
Currey Frederick 1820, Currey Sarah E 1829, Currey Fredk J 1850,
Currey Menella (Minnie?) 1851, Currey Florence 1854, Currey Isabella 1856(from 1871 Greenwich census)
Currey Walter Francis 1861 (with Wenella on the 1881 Greenwich census)
Roy G
Note: Minnie seems to be a very versatile alternative name, standing in for almost any female name beginning with 'M' and several other names besides. R G