Witte de With commanded a squadron at the outset of the First Anglo-Dutch War. For a brief period, he commanded the main fleet, and then he was back to being a squadron commander. His permanent rank was Vice-Admiral. We know his squadron's composition at several dates in 1652:
Commander                 Adm    Ship                  Guns Crew ? June 4 Aug 2 Dec
Augustijn Balck           A      Vrijheid              46   150  X      X     X
Ernestus de Bertrij       R      Hollandia             ?    ?    X      X     
Jan Jansz Boermans        A      Prins Willem          28   100  X      X    
Adriaan Bruynsvelt        F      Breda                 28    85*              X
Abraham van Campen        A-Dir  Arke Troijane         28   100               X
Gillis Thyssen Campen     A      Gouden Leeuw          24    80  X      X    
Jacob Cleijdijck          R-Dir  Meerman               30   120               X
Marinus de Clerck         R      some ship (Schiedam?) ?    ?                 X
Barent Cramer             A      Edam                  28   100  X      X
Pieter Gorcum             Z      Dordrecht, jacht      17    50  X      X
Albert de Graeff          A      Hollandia             32   110  X      X
Jan de Haes               R      Gulden Beer           24    80  X      X     X
Dirck Juynbol             R      Gelderland            30   131               X
Hendrick Kroeger          A      Leiden                28   100               X
Nicolaes Marrevelt        A      Zeelandia             36   120               X
Cornelis Naeuoogh         A-Dir  Sint Matheeus         36   135               X
Cornelis Jansz Poort      A-Dir  Kroon Imperiaal       34   125               X 
Dirck Schey               A      Achilles              28   100               X
Teunis Vechterszoon       N      Scheletje             24    70  X      X    
Dirck Vijch               R      Overijssel            22    80               X
Jan Reyndersz Wagenaer    F      Graaf Hendrick        30   100               X
Schelte Wiglema           F      Frisia                ?    ?                 X
Witte Cornelisz de With   R      Prinses Louise        36   120* X      X     X
Sources:
- James C. Bender, unpublished manuscript "The Dutch Fleet on 4 August 1652 as listed in Hendrick de Raedt's pamphlet", 2006
 - Dr. S.R. Gardiner, Ed., The First Dutch War, Vol.I, 1898
 - Dr. S. R. Gardiner, and C. T. Atkinson, Ed., The First Dutch War, Vol.III, 1906