Archives of the Rainer Foundation are held at the Galleries of Justice.  The collection is described as "including annual reports, letters, minute books and photographs that charts the history of the London Police Court Mission, the forerunners of the Probation Service. The collection also includes material on a number of philanthropic societies and reform schools such as The Associated Societies for the Protection of Women and Children; The School of Discipline (established by Elizabeth Fry 1825); and the London Female and Reformatory Institutions." (Source: Galleries of Justice website) [note: as of April 2009, this latter page has moved temporarily, but a new link will be provided asap].

Minutes of the Central Police Court Mission (predecesor of Rainer and the Rainer Foundation) are held at Lambeth Palace Library. These include:

"Minutes of the Committee (ref. MS 2061; dates 11 January 1927-9 March 1937), and (ref. MS 2780: dates 5 May 1937-15 March 1938);

Minutes of the Executive Committee (ref. MS 2781; dates 14 June 1938-12 July 1939);

Minutes of the Mission Sub-Committee (ref. MS 2062; dates 26 January 1937-26 January 1938);

Minutes of the National Police Court Mission Council (ref. MS 2063; dates 9 May 1938-7 October 1942)"

Collections exist for numerous local branches of Police Court Mission, for instance:

Altrincham Preventive and Rescue Society and Police Court Mission ref. EDM 27; NRA 33455 Chester; dates 1933-1940), held at Cheshire and Chester Archives and Local Studies -see online catalogue.

Norfolk and Norwich Police Court Mission (ref. SO107; dates 1921-38), held at Norfolk Record Office -see online catalogue.

Details of other local branches of the Police Court Mission can be found by searching A2A.

 
References to the Rainer Foundation are among the papers of Brig (Henry Cecil) John Hunt, a president of the foundation. The papers are held at King's College London: Liddell Hart Centre for Military Archives -see online catalogue.

A number of minor references to the Rainer Foundation, and the Police Court Mission are listed on A2A.

See also Dango record for the Royal Philanthropic Society (which merged with the Rainer Foundation to become Rainer).