South Oxfordshire Conservative Association was formed in 1885. In 1918 the Mid Oxon Constituency was abolished and part was transferred to South Oxfordshire. The boundaries changed again with the creation of the new Mid Oxfordshire Constituency in 1972. This collection also includes a few items for the Mid Oxfordshire Division.
The records were originally deposited as Acc 1005 in March 1972 and Catalogued as S. Oxon. Con. Further records were deposited as Acc 5588 in November 2006. Recatalogued with additions by Alison Smith in January 2020.