Many details of the Dirichlet family are given in where it is shown that the Dirichlets came from the neighbourhood of Liège in Belgium and not, as many had claimed, from France.
Paljud üksikasjad Dirichlet pere on esitatud, kui see on näidanud, et Dirichlets tulid naabruses Liège Belgia ja mitte, nagu paljud on väitnud, Prantsusmaalt.