Here are the backs of the cards in the same order.
The message reads:
Dear Ruth just a card to ask you if you can put me up for one night as I shall be home on Thursday and shall probably go to the flat on Friday. I shall not come until after xx o'clock as I shall be calling at mothers first hope you are all well Love from Ethel
The message on this one is a little harder to make out, but seems to say:
14 Warren Rd Folkestone
Dear Sister This is where all the big Pots stay there are two bandstands and a new Hall called the Cliff Hall also Leas Pavilion where we went to a Variety show called the Golden Gommes it is very good there are also some lovely walks below the cliffs We had a ride on the Model railroad at Hythe. We hope you are all well today Love Ethel and Fred.
We are at Swingate (?) today