Fourth Cabinet of J. B. M. Hertzog

Cabinet
{| class="wikitable" ! colspan=2 | Post ! Minister ! colspan=2 | Term ! Party
 * rowspan=2 style="background-color: " |
 * Prime Minister
 * rowspan=2|JBM Hertzog - SA (cropped).jpg  Gen. Barry Hertzog
 * rowspan=2|1938
 * rowspan=2|1939
 * rowspan=2 align=center | UP
 * Minister of External Affairs
 * rowspan=2 style="background-color: " |
 * Deputy Prime Minister
 * rowspan=2|Genl JC Smuts (cropped).jpg  Gen. Jan Smuts
 * rowspan=2|1938
 * rowspan=2|1939
 * rowspan=2 align=center | UP
 * Minister of Justice
 * style="background-color: " |
 * Minister of Agriculture and Forestry
 * style="padding-left:70px" |  The Hon. W. R. Collins MP 
 * 1938
 * align=center | –
 * align=center | UP
 * rowspan=2 style="background-color: " |
 * Minister of Commerce and Industry
 * rowspan=2|Oswald Pirow.jpg  The Hon. Oswald Pirow MP 
 * rowspan=2|1938
 * rowspan=2|1939
 * rowspan=2 align=center | UP
 * Minister of Defence
 * rowspan=3 style="background-color: " |
 * Minister of Education
 * rowspan=3|Henry Allan Fagan c.1916 (cropped).jpg  The Hon. Henry Fagan MP 
 * rowspan=3|1938
 * rowspan=3|1939
 * rowspan=3 align=center | UP
 * Minister of Native Affairs
 * Minister of Social Welfare
 * style="background-color: " |
 * Minister of Finance
 * Havenga (cropped).jpg  The Hon. N. C. Havenga MP 
 * 1938
 * 1939
 * align=center | UP
 * rowspan=2 style="background-color: " |
 * Minister of Interior Affairs
 * rowspan=2|Richard Stuttaford.jpg  The Hon. Richard Stuttaford MP 
 * rowspan=2|1938
 * rowspan=2|1939
 * rowspan=2 align=center | UP
 * Minister of Public Health
 * style="background-color: " |
 * Minister of Labour
 * HG Lawrence.jpg  The Hon. Harry Lawrence MP 
 * 1938
 * 1939
 * align=center | UP
 * style="background-color: " |
 * Minister of Lands
 * Jan Kemp.jpg  The Hon. Jan Kemp MP 
 * 1938
 * 1939
 * align=center | UP
 * style="background-color: " |
 * Minister of Mines
 * Deneys Reitz.jpg  The Hon. Deneys Reitz MP 
 * 1938
 * 1939
 * align=center | UP
 * rowspan=2 style="background-color: " |
 * Minister of Posts and Telegraphs
 * rowspan=2 style="padding-left:70px" |  The Hon. C. F. Clarkson MP 
 * rowspan=2|1938
 * rowspan=2|1939
 * rowspan=2 align=center | UP
 * Minister of Public Works
 * style="background-color: " |
 * Minister of Railways and Harbours
 * APJ Fourie.jpg  The Hon. Adriaan Fourie MP 
 * 1938
 * 1939
 * align=center | UP
 * style="background-color: " |
 * Minister without Portfolio
 * style="padding-left:70px" |  The Hon. Robert Henderson MP 
 * 1938
 * 1939
 * align=center | UP
 * colspan=6|
 * rowspan=2|1938
 * rowspan=2|1939
 * rowspan=2 align=center | UP
 * Minister of Public Works
 * style="background-color: " |
 * Minister of Railways and Harbours
 * APJ Fourie.jpg  The Hon. Adriaan Fourie MP 
 * 1938
 * 1939
 * align=center | UP
 * style="background-color: " |
 * Minister without Portfolio
 * style="padding-left:70px" |  The Hon. Robert Henderson MP 
 * 1938
 * 1939
 * align=center | UP
 * colspan=6|
 * 1939
 * align=center | UP
 * colspan=6|
 * colspan=6|

Changes 5 September 1939
Smuts became Prime Minister and formed his own cabinet after Hertzog was deposed by the party caucus. ! colspan=2 | Post ! Minister ! colspan=2 | Term ! Party
 * rowspan=3 style="background-color: " |
 * Prime Minister
 * rowspan=3|Genl JC Smuts (cropped).jpg  Gen. Jan Smuts
 * rowspan=3|1939
 * rowspan=3|1943
 * rowspan=3 align=center | UP
 * Minister of Defence
 * Minister of External Affairs
 * style="background-color: " |
 * Minister of Agriculture and Forestry
 * style="padding-left:70px" |  The Hon. W. R. Collins MP 
 * 1938
 * 1943
 * align=center | UP
 * style="background-color: " |
 * Minister of Commerce and Industry
 * Richard Stuttaford.jpg  The Hon. Richard Stuttaford MP 
 * 1939
 * 1941
 * align=center | UP
 * rowspan=2 style="background-color: " |
 * Minister of Education
 * rowspan=2|[[Image:Hofmeyr.jpg|60px]]  The Hon. J. F. H. Hofmeyer MP 
 * rowspan=2|1939
 * rowspan=2|1943
 * rowspan=2 align=center | UP
 * Minister of Finance
 * rowspan=2 style="background-color: " |
 * Minister of Interior Affairs
 * rowspan=2|HG Lawrence.jpg  The Hon. Harry Lawrence MP 
 * rowspan=2|1939
 * rowspan=2|1943
 * rowspan=2 align=center | UP
 * Minister of Public Health
 * style="background-color: " |
 * Minister of Justice
 * Colin Fraser Steyn.jpg  The Hon. C. F. Steyn MP 
 * 1939
 * 1943
 * align=center | UP
 * rowspan=2 style="background-color: " |
 * Minister of Labour
 * rowspan=2|Walter Madeley (cropped).jpg  The Hon. Walter Madeley MP 
 * rowspan=2|1939
 * rowspan=2|1943
 * rowspan=2 align=center | Labour
 * Minister of Social Welfare
 * style="background-color: " |
 * Minister of Lands
 * style="padding-left:70px" |  The Hon. A.M. Conroy MP 
 * 1939
 * 1943
 * align=center | UP
 * style="background-color: " |
 * Minister of Mines
 * [[Image:Charles Stallard.jpg|60px]]  The Hon. C. F. Stallard MP 
 * 1939
 * 1943
 * align=center | Dominion
 * style="background-color: " |
 * Minister of Native Affairs
 * Deneys Reitz.jpg  The Hon. Deneys Reitz MP 
 * 1939
 * 1943
 * align=center | UP
 * rowspan=2 style="background-color: " |
 * Minister of Posts and Telegraphs
 * rowspan=2 style="padding-left:70px" |  The Hon. C. F. Clarkson MP 
 * rowspan=2|1939
 * rowspan=2|1943
 * rowspan=2 align=center | UP
 * Minister of Public Works
 * style="background-color: " |
 * Minister without Portfolio
 * style="padding-left:70px" |  The Hon. P. V. G. van der Byl MP 
 * 1939
 * 1943
 * align=center | UP
 * colspan=6|
 * align=center | UP
 * rowspan=2 style="background-color: " |
 * Minister of Posts and Telegraphs
 * rowspan=2 style="padding-left:70px" |  The Hon. C. F. Clarkson MP 
 * rowspan=2|1939
 * rowspan=2|1943
 * rowspan=2 align=center | UP
 * Minister of Public Works
 * style="background-color: " |
 * Minister without Portfolio
 * style="padding-left:70px" |  The Hon. P. V. G. van der Byl MP 
 * 1939
 * 1943
 * align=center | UP
 * colspan=6|
 * 1943
 * align=center | UP
 * colspan=6|
 * colspan=6|

Changes 1941
! colspan=2 | Post ! Minister ! colspan=2 | Term ! Party
 * style="background-color: " |
 * Minister of Commerce and Industry
 * [[Image:SF Waterson.jpg|60px]]  The Hon. Sidney Waterson MP 
 * 1941
 * 1943
 * align=center | UP
 * }
 * }
 * }