Jan Willem Gunning ^40,89,1307

  Noted events in his life were:

• Occupation: lector.

• Occupation: hoogleraar scheikunde, , Professor.

Jan married Petronella Adriana Pierson, daughter of Jan Lodewijk Gregory Pierson and Ida Oyens, on 20 Oct 1858 in Heemstede, Noord-Holland, Netherlands. (Petronella Adriana Pierson was born on 12 Aug 1832 in Amsterdam, Noord-Holland, Netherlands, died on 1 Jan 1923 in Hilversum, Utrecht, Netherlands and was buried in Hilversum Bosdrift, Hilversum, Noord-Holland, Netherlands.)

  Noted events in their marriage were:

• Marriage Bann, 6 Oct 1858, Heemstede, Nederland.

• Family Address, 1 Jan 1923, Hilversum, Nederland. Hooge Naarderweg 8

Jan next married Henrietta Cornelia van Staveren on 5 Jul 1855 in Amersfoort, Utrecht, Netherlands. (Henrietta Cornelia van Staveren was born in Utrecht Municipality, Utrecht Province, Netherlands and died on 14 Aug 1856 in Utrecht, Utrecht, Nederland.)