There have been many accruals, all of which are described in the same finding aid. The first four accruals have been combined and described in twelve series: correspondence; manuscripts by Johnson; manuscripts about Johnson; financial documents; postcards, photographs and drawings; published materials written by Johnson; published material about Johnson; research and general interest material; promotional material, programmes and posters; souvenirs and travel memorabilia; scrap books; and realia. Additional, smaller accruals follow and consists of photographs, correspondence, new clippings, posters, realia and a compact disk. Books belonging to Johnson have been catalogued for Research Collections. Researchers may also wish to consult the Walter Jackson McCrea fonds.