As well as Edward Morgan's English biography (of 1844 and 1847 with the letters and remains. Republished 1973) there are others in Welsh:
1. J Jones, J Roberts (1850) Cofiant y Parchedig John Elias, o Fon Jones, 320 pp
2. Richard Parry/Gwalchmai (1859) Adgofion am John Elias Thomas Gee, Dinbych, 115 pp
3. Edward Thomas (1905) Y Parchedig John Elias o Fon Hughes a'i Fab, Wrexam, 119 pp
4. William Pritchard (1911) John Elias a'i oes Llyfrfa'r Cytundeb, Caernarfon, 312 pp, 12 leaves of plates: ill, facsims, ports
1974 saw the publication of Elias's Hunangofiant or autobiography written at the end of his life and introduced by Goronwy P Owen.
Hunangofiant John Elias (1974), Mudiad Efengylaidd Cymru, Penybont-ar-Ogwr, 103 pp.
