A name for compassion

I passed this van in London on my way to the Old Man's home.
It was the image of a cat caught my attention first (there is a dog on the other side) and then the tag line "Founded 1886" but most of all it was name Mayhew.

Henry Mayhew (1812-87) was a writer and journalist whose social research, unique at the time, shone a relentless spotlight on the lives of the impoverished in Victorian England. His best known work is London Labour and London Poor, 1851, based on interviews with the people themselves. He did what no one had done before: he went out and talked to the people on the streets: beggars, prostitutes,market traders, chimney sweeps, pickpockets, flower girls, cat and dog meat dealers, the unemployed, the criminal, the desperate and the derelict. His writing captured the conditions of their daily life and recorded their utterances in a form that many have described as the best oral history of the period. He allowed the people he met to speak freely and and he documented their stories without judging or moralizing. He also mapped the incidence of crime across the country and linked its occurrence to statistic for poverty. He was the first to provide evidence that made the connection explicit and his work inspired and armed much of the campaign for supporting, and improving the conditions of, the poor in the late 19th century.

Naturally I was keen to discover what connection, if any, existed between Henry Mayhew the Victorian social reformer, and the animal rescue organization that bears the same name and was founded in 1886, the year before he died.
The answer is - well, there is no answer! Bizarrely, the Mayhew Animal Home, evidently a massive, highly regarded and well-supported charity devoted to rescuing and rehoming pet animals, states on its extensive website no more than
The Mayhew Animal Home was established in 1886 for the benefit of "the lost and starving dogs and cats of London so that they should have sanctuary from the cold inhumanity they are being dealt outside".
Although it has a vast presence on the internet I could find no further clues to who or what or where Mayhew was, nor any information whatsoever about how the charity came to be founded at a time when social concern about the human welfare and about animal welfare was at last attracting attention and money. Why not? It seems a wasted opportunity not to expose the roots of this huge operation to save animals, but more than that it makes me wonder whether there's some mystery about the history.

If anyone can satisfy my curiosity I would be very grateful. Meanwhile all may the excellent work of the organization thrive (although I see that it peddles the myth that one female cat can be responsible for 370,000 offspring in 2 years, a manufactured statistic that has no basis in reality.)