- Dr Henry K Birch, historian: papers rel to his official history of the North Wales Police 20th cent
- David Wild, Antarctic explorer: papers 20th cent
- Erbistock parish: tithe apportionment, vestry orders, school corresp and electoral roll 1845-1934
- Brymbo parish: service registers and offertory book 1935-1974
- Cefn Meriadog Parish Council: minutes 1896-1981
- Clwyd Federation of Young Farmers Clubs: records 1974-1997
- Denbigh, Flint and Merioneth Baptist Association: title deeds and misc papers 19th-20th cent
- Denbigh Infirmary: records 20th cent
- Denbighshire Federation of Young Farmers Clubs: records 1951-1974
- Flintshire Federation of Young Farmers Clubs: records 1964-1974
- Llanddulas School: log books and governors' minutes 1970-1998
- Llanfwrog Hospital: trustees' minutes 1856-1991
- Llangollen Railway Society: papers rel to publication 'Steam at Llangollen' 1977-2003
- Llanrhaeadr yng Nghinmerch National School: log books, admission registers, minutes and punishment book 1883-1987
- National Council of Women of Great Britain: Llangollen and District Branch: minutes, accounts and misc papers 1918-2004
- North Wales Hospital, Denbigh: plans, maps and misc papers 19th-20th cent
- Old Epworthians Association, Epworth Preparatory School: additional papers 20th cent
- Rhos-y-Medre National School: log books 1862-1909
- Wales Federation of Young Farmers Clubs: records 1976-1984
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