Papurau, 1909-1981, nodiadau ymchwil a gohebiaeth yn bennaf, yn ymdrin â phynciau penodol ac a gasglwyd ynghyd gan Iorwerth Peate. Maent yn cynnwys ymchwil ar gyfer, ac ymatebion i, erthyglau a darllediadau radio ganddo.

Papurau Llywelyn Phillips,1864-1982, yn cynnwys gohebiaeth, 1937-1981; erthyglau, darlithoedd, anerchiadau a chyfansoddiadau llenyddol,1933-1980; papurau amrywiol yn ymwneud â'i yrfa, pynciau amaethyddol, bywyd a llenyddiaeth Cymru, 1864-1952; llyfrau lloffion o dorion,1949-1956; cerddi, gan gynnwys y rhai a gyflwynodd i eisteddfodau a chyfansoddiadau ar gyfer achlysuron arbennig, 1957-1981; erthyglau amrywiol a sgriptiau radio,1940-1981; teyrngedau i Llywelyn Phillips,1864-1982; a gweithiau printiedig,1954-1981 = Papers of Llywelyn Phillips, 1864-1982, including correspondence, 1937-1981; articles, lectures, addresses and literary compositions, 1933-1980; miscellaneous papers relating to his career, agricultural matters, Welsh life and literature, 1864-1952; scrap books of cuttings, 1949-1956; poems, including those submitted for eisteddfodau and compositions for special occasions, 1957-1981; miscellaneous articles and radio scripts, 1940-1981; tributes to Llywelyn Phillips, 1981-1982; and printed works, 1954-1981.

A volume containing over eighty letters, 1906-1914, from Charles William Dymond (1833-1915), antiquary and Quaker, to Richard Griffith Owen (Pencerdd Llyfnwy) relating mainly to the correspondent's interest in the Welsh language and culture; together with one letter, 1915, from his son, Philip W. Dymond.
Papers found loose inside the volume have been tipped in on ff. i-v.