The party was originally established in Mariental by Frikke Jooste in July 1924.
[2] On 31 January 1927 it merged with the South West Party, which had won one seat in the elections,[2] to form the United National South West Party (UNSWP).
[4] Thereafter the National Party dominated South West African politics, winning sixteen seats in the 1955 and 1961 elections and all eighteen in 1965.
[1] Prior to the elections the following year, the National Party formed a multi-racial, Action Front for the Retention of Turnhalle Principles (ACTUR).
However, it received only 12% of the vote, winning six seats to the Democratic Turnhalle Alliance's 41.