Dr. Ballhausen had reference for Witte de With using the Jonas as his flagship in December 1652

Dr. Ballhausen, on page 395 of his book, says that in late 1652, Witte de With flew his flag on the Jonas, the Rotterdam Directors' ship that was commanded by Jan de Liefde (36 guns and a crew of 125 men). Dr. Ballhausen says that he source is the Rotterdamsche Historiebladen, published in Rotterdam in 1880. Sources:

1. Dr. Carl Ballhausen, Der Erste Englisch-Höllandische Seekrieg 1652-1654, 1923.