"South Africa, Orange Free State, Estate Files, 1951-2006," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/FC3S-Y99 : accessed 17 Jul 2014), Schalk Johannes Ackerman, 13 Aug 1956, Death; citing , Master of the Free State High Court, Bloemfontein; FHL microfilm 004210597.[1]