My father's sister Audrey, living in Teignmouth

I have four cousins, children of Morris (one of my mother's brothers)
I tried to keep in touch several times up to the 1980's, and wrote to Peter (who I believe is at the same adress) gain to after death of my mother (their aunt) but I've had no response -
Peter Riches, Kay Riches, Paul Riches, and Susan Riches.
If you are, or know of, any of children, or grandchildren, of Morris Riches and Olive Riches (from the Norwich area) please contact me.