From the rear left to right, the names are;

Sarah Troth (small girl), Agnes Harrison, Violet Troth, "Sarah" Mary Jane, Charles Davies, Gladys Harrison.

Mid row L to R;

Elsie May Harrison (my Grandmother), Allen Davies (my Grandfather), Doris Harrison, Nellie Troth.

Front L to R;

Fred Troth, Albert Troth.

Charles Davies and Doris Harrison were the witnesses at the wedding.