For some reason, Linthorst continued his political career as a colonial administrator on the Dutch Gold Coast.
[2] Linthorst was appointed resident of Fort Crèvecœur in Accra on 20 April 1802 and served there until he took over as governor-general of the Dutch Gold Coast on 16 June 1805, after his predecessor Isaac de Roever repatriated to the Batavian Republic to recover from illness.
[5] All doubts on the legitimacy of Linthorst's rule were taken away, however, when he was officially appointed as governor-general by the authorities in the Batavian Republic on 5 August 1805.
[6] During Linthorst's time in office the Ashanti–Fante War broke out, which among other things resulted in the Fante occupation of Fort Amsterdam.
Linthorst blamed this on the lack of military supplies from the metropole, which at the time was going through a turbulent period in which the French client state of the Batavian Republic was replaced by a Kingdom of Holland headed by Louis Bonaparte as king.