My name is Colin Lewis. My mother was Abigail Mendoza, daughter of Sydney Solomon Mendoza, born in London around 1885. I know he had siblings, but I don't know how many, or any relevant details. I was told he was a direct descendant of Daniel Mendoza, and was told of the Peter Sellers connection, though I do not know the details. Sydney Mendoza was a member of Bevis Marks Synagogue. He had four children, including my mother, and died in 1966.
If you have any further information on that part of the Mendoza family, I would be glad to hear from you.