Well George DANDO b 1865 - Rosina's Dad - is a bit of a special snowflake as well.
1871 Census has him living with Louisa DANDO, who is purporting to be his mother, along with 3 other siblings, Mary, Martha and Elizabeth.
If you then go back 10 years, Louisa is living with her parents, George DANDO and Elizabeth (nee Bridges)... and her three younger sisters, Mary, Martha and Elizabeth.
In researching, it looks like his Mother may have been Elizabeth (nee BRIDGES) rather than Louisa, as Elizabeth died in 1866, shortly after George was born.
So either his is illegitimate and Louisa is his Mother, or he is Elizabeth's son, and Louisa then stepped in to look after her siblings after her mother died... I have therefore ordered his birth certificate. So that will be sorted out one way or the other shortly.

And then I wonder what happened to Louisa's Dad (George c.1808 DANDO). I find him on 1871 census living with his SON (!). Named Abraham MARTIN. I find the baptism record for Abraham MARTIN, and his parents were a Elizabeth MARTIN, and a George "MARTIN" <cough>. No available marriage record for those two, no census data, and in a totally different village to where George DANDO 1808 had always lived. I have a hunch that someone had a son out of wedlock and to save blushes he is on the baptismal record as being a different surname.
Abraham MARTIN has a seemingly complicated family life as well - he is on the census with children of his first marriage (1848 to Sarah BURTON, Shepton Mallet, who I believe died c1852) in 1871.
His then wife is Patience MARTIN, who has children seemingly from a previous marriage, all surname LEWIS. Then he has children with Patience who all have surname MARTIN.
I cannot find a record of a Patience LEWIS marrying Abraham MARTIN. I have found a record of a Patience CROCKET marrying a Joseph LEWIS (Monmouthshire 1834).
As a final epilogue - George DANDO 1808 - the only birth record I can find for the right place (different year, but that varies across several sets of census data) is of a "baseborn" son. So here endeth the paternal line I think.