Joachim was born on March 4th, 1908 and his baptism took place on April 13th, 1908 in Bloemfontein.
Birth Notes
"South Africa, Free State Dutch Reformed Church Records, 1848-1956," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/KZLS-K7Q : accessed 10 Nov 2012), Joachim Hendrik Maartens, 1908.