Lived in Amsterdam, Tintorettostraat 13-II. Son of Abraham Jacob Cijfer and Henriette Cornelia Sophia Voogel. Unmarried. After passing his secondary school exams, studied Dutch language and literature at the University of Amsterdam/poet. No church.
Cijfer, a so-called half-Jew, refused to sign the declaration of loyalty for students. He published poems under the pseudonym G. E. Tal in literary magazines such as En Passant and Parade der Profeten. In 1944 he joined the editorial staff of the illegal newspaper Het Parool. He was also a delivery person for this newspaper, as well as for De Nieuwe Amsterdammer and De Vrije Katheder. While distributing Het Parool in Amsterdam, he was arrested on 31 March 1945 by members of the SS and the Landwacht. Cijfer was taken to the prison on Weteringschans for questioning and was imprisoned there until shortly before his execution.
His name is on the monument De Opgeheven Hand (The Raised Hand) near Burgerbrug.
A street in Amsterdam is named after him.
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