From 1807, Verveer served as Commander of Sint Maarten, until the island was taken by British forces in 1810.

[3][4] As a consequence of this mission, he became the principal adviser of King William I of the Netherlands on the Nicaragua Canal.

[5][4] In the autumn of 1836, Verveer was appointed a Royal Commissioner by King William I of the Netherlands and charged with concluding a treaty with the King of Ashanti Kwaku Dua I Panyin to facilitate the recruitment of soldiers to the Royal Netherlands Indies Army.

A year later, however, Verveer was sent back to the Gold Coast to quell the rebellion of Ahanta.

[2] Jan Verveer is portrayed in the 1997 novel The Two Hearts of Kwasi Boachi by Arthur Japin.