Thomas and Charlotte had the following children Ref: GRO Index
Mary Christian 1839 reg. Strand Union mother's maiden name Cairns
Margaret Peper? 1841 reg Strand Union
Charlotte Matilda Barbara 1845 reg Saint Pancras
So at this point they are still alive having moved to Saint Pancras.
There is Charlotte Matilda Murray who marries Thomas William Whalebone 19 March 1865 , St George the Martyr, Queen Square, Camden
Her father Thomas is a Compositor?
His father also Thomas William is a China painter and Gilder