Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Njem: Ferrier sooro ndị ikwu ya biri na Netherlands. Ya na ha biri n'Oegstgeest. Nwa ya nwanyị, Kathleen Ferrier, bụ onye bụbu onye otu ụlọ omebe iwu nke Netherlands maka Christian Democratic Appeal. N'afọ 2005, e bipụtara akwụkwọ ncheta Ferrier bụ Last Governor, First President: The Century of Johan Ferrier, Surinamese. Eze nwanyị Dutch nyere ya ọkwá chi. Akụkọ ọnwụ ya nke gbara n'akwụkwọ akụkọ kwa ụtụtụ nke mba ahụ bụ́ De Volkskrant kwuru na o kwuru, sị: "Ọbụna n'ụbọchị ndị kasị sie ike, anọgidere m na-enwe nchekwube".  Ajụjụ: Gịnị bụ aha nwa ya nwaanyị?
Kathleen Ferrier