Below is a listing of the first known reference in newspapers to cricket being played by teams starting with the letter E in various settlements in Wales during the 19th century.

Earlsmoor 1897
East Glamorgan 1868
East Wales 1883
Ebbw Vale (See Ebbw Vale)
Epworth College (Rhyl) 1895
Ewenny 1899
Exchange Terriers 1895
Eyton 1845

Credit – Glamorgan Cricket Archives