HILLSIDE, N.J. (AP) — A Holocaust survivor who along with his brother founded one of the nation’s largest real estate development firms has died. Joseph Wilf was 91.

Wilf died Wednesday at home in Hillside, New Jersey. The death was announced by the NFL’s Minnesota Vikings, who are owned by Wilf’s sons, Zygi and Mark.

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Joseph Wilf was born in Jaroslaw, Poland. When World War II started, he was deported to a Siberian labor camp with his brother, Harry, and their parents. All four survived, though the couple’s daughter, Bella, died in the Warsaw ghetto.

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Joseph Wilf and his wife immigrated to the U.S. in 1950. Four years later, Wilf and his brother founded Garden Homes, which is now one of the largest real estate companies in the United States and in Israel.

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