The materials were presumably in the possession of the World Jewish Congress from where the legal predecessor of the contemporary Hungarian Jewish Archive received it in 1950.
Description prepared by Ferenc Laczó based on http://collections.ushmm.org/findingaids/RG-39.013M_Hu.pdf
The Hungarian Institute for Research of the Jewish Question was a Hungarian, Nazi-style institute in Budapest. It was founded in 1943 under the directorship of Zoltán Bosnyák, an extreme rightist journalist, editor and teacher. Bosnyák published a host of radically anti-Semitic books in the 1930s and early 1940s and the “Jewish question” practically constituted his sole theme. Spending years in hiding after the war, Bosnyák was eventually returned to Hungary in 1951 and executed in 1952. Among the founders of the Hungarian Institute for Research of the Jewish Question were several prominent perpetrators such as László Endre, undersecretary of state at the Ministry of the Interior in the Sztójay government of 1944 and a leading Hungarian perpetrator, or Mihály Kolosváry-Borcsa who headed the press chamber since 1939, i.e. at the time of its anti-Semitic radicalization, and similarly occupied the position of undersecretary of state in 1944. The Institute published its paper Harc (Struggle) also during the mass deportations from Hungary in 1944. The collection includes miscellaneous documents from the library and archive of the Hungarian Institute for Research of the Jewish Question. It contains copies of documents of the nationwide survey of the Hungarian Jews ordered by the Minister of the Interior in April 1944 through Decree no. 6136/1944 VII. This primarily means name lists on Hungarian Jews that were sent in from a host of localities. The collection also contains various anti-Semitic plans and proposals as well as applications for exemption from the anti-Jewish decrees originally sent to the Ministry of the Interior.
A Zsidókérdést Kutató Magyar Intézet iratai