Y Traethodydd.
Welsh Calvinistic Methodist Church.
Dinbych : T. Gee,
1845-
Imprint varies.
Imprint varies.
Issues for Jan. 1959 (3rd ser.)- reverted to original numbering system, added t.p. carrying 3rd series numbering designation to cyf. 35 (1967).
Issued by: Llyfrfa'r Methodistiaid Calfinaidd, 19--?-
Index: Cyf. 1 (1845)-cyf. 50 (1895), in 1 v. - Index: 1896-1957, in 1 v.