He should not be confused with Boer general Andries Petrus Johannes Cronjé (1849 – 1923), who surrendered and cooperated with the British in the National Scouts.

[2] Andries Petrus Cronjé was born the eldest child among in total five sons and four daughters of Johannes Daniel Cronjé (Swellendam, Overberg, Western Cape, South Africa, 21 October 1806 – Kroonstad, Northern Free State, Free State, 4 April 1901, after a march forced by the British) and Dina Judith Geertruida Woudrina Rall (12 September 1812 – Concentration camp Kroonstad, Orange Free State, 2 April 1901, after a march forced by the British).

[3] Andries Petrus married his first cousin Cornelia Christina Cronjé (also her maiden name, Swellendam, Overberg, Western Cape, South Africa, 8 July 1838 – Strijdfontein, Winburg, Orange Free State, 27 March 1928) and had twelve children by her, at least six daughters and five sons.

[9] He took part in the Siege of Ladysmith in November 1899[10] and fought in the Battle of Colenso (15 December 1899),[11] Spioenkop (24 January 1900)[12] and of Vaalkrans (Vaal Krantz, 5 - 7 February 1900).

In September 1900 Cronjé supported the President in the meetings of the Free State and Transvaal governments at Waterval Onder, Nelspruit (now Mbombela) and Hectorspruit, west of Komatipoort.