"Deri is a village in Caerphilly County Borough,... Deri along with Pentwyn and Fochriw make up the community of Darran Valley. The village grew around the Industrial Age to serve the collieries of Fochriw, Pencarreg and Groesfaen. " wikipedia
The church is dedicated to St. Peter, is in the Benefice of Bargoed and Deri with Brithdir, and Diocese of Llandaff. Details of the present incumbent of this benefice can be found at the Church in Wales website. The church can be found at grid reference SO128018.
Midwifery records of Ann Evans of Deri "Mrs Ann Evans was a midfwife employed by Glamorgan County Council. She entered the profession in 1914, and practised in Deri, near Bargoed"
"Registers of cases, 1914-1935; ante-natal record book, 1926-1934; medical record chart, 1937-1939; records for sending for medical help, 1938-1939; lecture notebooks, c1910-1914; medical publications, 1891-1934, miscellaneous papers, 1906-1955"