The Kobe relatives list — refugees at Kobe in 1941 recorded with their relatives abroad. Seventy-six pages in numbered sheets (LIST No. 7, No. 16 and others), each line giving a name, age, birthplace, occupation and citizenship, and then… The Kobe Jewish Community's 1941 list of refugees and their relatives abroad has, at entry 148, Aron Binen Kohn, 31, born at Rypin, a wood specialist, with an uncle, Izaak Zylbersztejn, abroad. The register carries two Aron Kohns: this line, 30 and a wood specialist by the compilers, and No. 253, 45 and a manufacturer. The age and the trade are this line's.
UNRRA China Office, S-1132-0000-0181, registration of Polish rabbis and rabbinical students, their lists and sailings, Shanghai 1945–1946 (UN Archives, AG-018-001) The Agudath Israel organisation of refugees from Poland in Shanghai listed him among its members on 24 December 1945: Aron Bynem Kohn, born in 1910 in Rypin, Polish passport No. 324/729/30/VI/41 issued in Tokyo in June 1941. The UNRRA China Office kept the list with its 1946 registration of Polish rabbis and rabbinical students. In April 1946 he was named among the Agudath Israel delegates to the movement's world convention in the United States, for whom the organisation asked UNRRA to find places on aeroplanes. (United Nations Archives, UNRRA China Office records.)