Although his primary vocation was in the insurance business, Thomas John Williams (b. Ynysmeudwy, Glamorganshire, Wales, 1869; d. Llanelly, Carmarthenshire, Wales, 1944) studied with David Evans at Cardiff and later was organist and choirmaster at Zion Chapel (1903-1913) and Calfaria Chapel (1913-1931), both in Llanelly. He composed a number of hymn tunes and a few anthems.