Thanks all.
I know that the article does refer to Matthew as stepfather, but I do question that.
As you found, Thomas' mother was Elizabeth SMITH and father was Matthew JOHNSON and they married shortly after Thomas was born in 1840. I have interpreted that as the reason behind the double barrelled nature of his name. Matthew Johnson was named as his father on Thomas' wedding certificate.
Thomas and Maria's first two daughters - Sarah and Harriet - were originally Smith Johnson. The third - Maria - was Maria S. Johnson (as were the rest of the family on the 1871 census) and then Mary, Robert (my g grandfather) and Fanny were all just Smith. A gradual phasing out of the link with Matthew ....
It was clearly a very bad relationship between Matthew/Elizabeth and Thomas/Maria. There are other articles about altercations between Elizabeth and Maria as well as further problems with Matthew and pretty much everyone! I always found it interesting that none of the many children of Matthew and Elizabeth chose to name any of their own children Matthew!
Perhaps Matthew was only stepfather and I don't have to own him in my family

I always hoped that Thomas and Maria made the move for the good of their own family. Will probably never get to the bottom of it!
TreeGirl
