If George Morris is the father for Colin, I would look at the George Morris living a few houses away, in the very same street as Gladys and Lily, in Ledbury in 1939.
He is divorced, born 1903, and a wharehouse labourer.
ADDED. I note that on Colin Parrys death certificate, his father is named as George. Whoever the informant was at his death, they knew something about his father.