Publication Language: Welsh
Publisher Details: Published by: P.M. Evans & Son, Holywell (1900-1903); Swyddfa'r Herald, Caernarfon (1904-1912); Llyfrfa'r Cyfundeb, Caernarfon (1912-1928); Llyfrfa'r Methodistiaid Calfinaidd, Caernarfon (1929-1993); Gwasg Pantycelyn, Caernarfon (1994-2007).
First Available Issue: 1900
Last Available Issue: 2007