XIVa. Willem Marinus Kolff (15 Mayors), born Deil 7 Aug. 1810, mayor and secretary there 1836-dec., member Prov. Staten of Gelderland 1850-dec., deceased Deil 21 July 1868, married Buurmalsen 2 Sept. 1835 Martina Maria Verwey, born Buurmalsen 2 Sept. 1812, deceased Deil 20 Dec. 1870, daughter of Jan Antonie and Teuntje van Wijk.
From this marriage:
1. Maria Gualtera Kolff, born Deil 21 May 1836, deceased Leiden 11 Jan. 1892, married Deil 1 June 1865 Robertus Formijne, born Varik 20 May 1828, ontvanger der registratie and domeinen, last at Leiden, deceased there 26 June 1901, son of Barend and Maria Dirkje van Empel.
2. Jan Antonie Kolff, born Deil 28 July 1838, deceased there 20 July 1845.
3. Gualtherus Martinus Kolff (15 Mayors), born Deil 20 June 1840, mayor and secretary there 1868-dec., member Prov. Staten of Gelderland 1868-dec., deceased Deil 5 Dec. 1879.
4. Wilhelmina Martina Kolff, born Deil 7 Jan. 1842, deceased Herwijnen 11 Jan. 1915, married Deil 19 Aug. 1874 Mr. George Justinus Kolff (zie AC XVc.).
5. Martina Wilhelmina Kolff, born Deil 23 Jan. 1844, deceased Utrecht 23 Aug. 1925, married Deil 18 June 1868 Mr. Gerardus Anthony Visscher (R.N.L., C.O.N.), born Utrecht 18 June 1835, jur.dr. Utrecht 1858, griffier kantongerecht at Geldermalsen 1862-1864, kantonrechter there 1864-1867, subst.-officier van justitie at Heerenveen 1867-1868, at Arnhem 1868-1875, advocaat-generaal 1875-1885 and procureur-generaal 1885-1907 gerechtshof at Leeuwarden, deceased Utrecht 4 July 1907, son of Bartholomeus Cornelis Johannes and Anna Elisabeth Knoll.
6. Jannetta Antonia Kolff, born Deil 21 March 1846, deceased there 24 March 1928, married Deil 28 Nov. 1872 Mr. Marius Kolff (see AC XVd.).
7. Anna Femmina Kolff (Biographies), born Deil 28 Jan. 1848, deceased there 20 Feb. 1941.
8. Margrita Johanna Kolff, born Deil 27 Nov. 1849, deceased there 19 May 1850.