After his retirement from Brooklyn College, Hoogenboom authored Rutherford B. Hayes: One of the Good Colonels, and Gustavus Vasa Fox of the Union Navy: A Biography, about Assistant Secretary of the Navy Gustavus Fox. He worked with his wife, Olive, on one of her books, Washington Women: The Woodbury Sisters.[4]
Personal life & death
With his wife, Hoogenboom fathered three children: Lynn, Ari, and Jan.
Hoogenboom died in 2014, aged 86, from complications of mesothelioma.[4]