Citroen was the son of Levie Citroen (born on November 12, 1855), a diamond cutter in Amsterdam, and Sara Levie Coltof (born on February 26, 1852).
Citroen adalah anak dari Levie Citroen (lahir 12 November 1855), seorang pemotong berlian di Amsterdam, serta Sara Levie Coltof (lahir 26 Februari 1852).