Abstracts of title deeds and documents of the families of Owen and Evans of Eskeirieth [in Trefeglwys], 1660/1-1833, Bennett of Derwllwydion [in Trefeglwys], 1765-1817, Jones and Owen of Ddolgoed in Talyllyn and of Tyddyn Llawr in Penegoes, 1738-1849, Lloyd of Cefnbarrach in Trefeglwys, 1691/2-1808, etc.; notes on the family of Jones of Ddolgoed; extracts from memorial inscriptions in the churchyards of Llanbrynmair, 1781-1862, Trefeglwys, 1792-1915, Llandinam, 1814-1896, Bettws [Cedewain], 1769-1914, and Capel Bangor, co. Cardigan (with references to the family of Edwards of Pwllcenawon), 1829-1901; a list of overseers of the poor and churchwardens of the upper and lower divisions of the parish of Llanbrynmair, 1706-1743; abstracts of deeds (in the 'C.M. Safe, Llanidloes'), 1795-1811, relating to properties in Carno and Llandinam, including the site of Gleiniant Calvinistic Methodist chapel; abstracts of deeds in the Peniarth, Celynog, and other collections in the National Library of Wales; a list of probate records of Montgomeryshire and Merioneth interest, 1660-1698; miscellaneous extracts from the parish registers of Llandinam, Bettws [Cedewain], Kerry, Llanidloes, Trefeglwys, Llangurig, Penstrowed, Llanwnog, Carno, Talyllyn, Pennal, Llanbrynmair, Penegoes, Cemmes, Machynlleth, Darowen, Mallwyd, Llanwryn, etc., and from the register of Penllwyn [Calvinistic Methodist Church, co. Cardigan] (with references to the family of Edwards of Pwllcenawon); extracts from Trevecka Manuscripts; and miscellaneous extracts from manuscript and printed sources. The volume was compiled in 1925.

Annotated abstracts of Arwystli and Estimaner probate records preserved in the District Probate Registry, Bangor, 1635-1855. MS. 11862 contains similar abstracts (partly from the papers of D. C. Ll[oyd-] O[wen]) of Montgomeryshire probate records preserved in Somerset House, 1681/2-1778. MS. 11862 is indexed. MS. 11863, compiled in 1924, contains extracts from the parish registers of Towyn, Pennal, and Talyllyn, 1663-1840, and extracts of Montgomeryshire interest from printed sources, including pedigrees and lists of contributions to the London Missionary Society, 1799, 1824, 1831-1832.

Draft pedigrees and miscellaneous genealogical extracts and notes from parish registers and other manuscript sources and from printed publications relating largely to individual Montgomeryshire families, e.g., Jervis of Llanbryn-mair, Burton of Darowen, Bennett of Trefeglwys, etc., Bowen of Trefeglwys and Llanwnnog, Swancott of Trefeglwys and Llanwnnog, Kinsey of Llandinam, Savage of Trefeglwys and Llanwnnog, Goodwyn of Trefeglwys, Worthington of Trefeglwys, Mills of Trefeglwys, Jerman of Trefeglwys, Ashton of Trefeglwys, Pughe of Darowen and Penegoes, Pugh of Aberffrydlan [in Llanwrin] and Abergwydol [in Darowen], etc. Among other items included in the extracts are some nineteenth century statistics of Calvinistic Methodist churches and Sunday Schools in the Llanidloes area; material relating to Llanbryn-mair from parochial records, 1663-1821, and from records of the Court of Great Sessions, 1662-85/6; abstracts of probate records of Quakers in Trefeglwys, 1708-76; and a pedigree chart of Principal J. H. Davies, University College of Wales, Aberystwyth.