"South Africa, Free State Dutch Reformed Church Records, 1848-1956," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/KZLS-Z85 : accessed 15 Nov 2012), Johannes Cornelis Maartens in entry for David Schalk Maartens, 1897.

Title:    RS 29 ORC DL
Type:    Death lists
Location:    National Archives, Pretoria
Reference No.:    RS 29
Origin:    Goldman
Notes:    p.176
Title:    Government Gazette of the Orange River Colony
Location:    
Notes:    17/1/1902, p.42
Title:    SRC 74 Bethulie CR
Type:    Camp register
Location:    Free State Archives Repository
Reference No.:    SRC 74
Notes:    p.181