Here's a partial timeline for Charles (the one who married Clara):
1869 (24 Apr): Marriage to Clara Annie Cork in Tottenham. Charles is of full age; father William, labourer.
1871: Charles Hollingsworth, gardener, 22 b Thaxted, Essex (family in Westminster)
1881: Charles Hollingsworth, gardener, 32 b Bardfield, Essex (family in Lee, Lewisham)
1891: Charles Hollingsworth, florist, 42 b Thaxted (family in Farnborough)
1901: Charles Hollingsworth, florist, 52 b Thaxted (family in Farnborough)
His consistent age makes the 1848 birth with mmn Rolph more likely than the 1851 one with mmn Collen, I'd have thought? In both cases the father appears to have been William.