There are several mentions of Eyles, the grocers. I have looked on the 1939 Register & found a George Eyles (grocer & provision dealer) living with his wife Alice (Post Office clerk & domestic duties) at 421 Kingston Road. This became Wimbedon Chase Post Office but has now closed.
Cat food: lights were lungs. I can well remember the disgusting smell when they were being boiled for the family cat in the 1950s & 60s. Once boiled they were grey & solid – like a very firm rubber. Fred paid 6d a pound for them, equivalent to about £1.05 now.