Please help us understand what the meaning of "particuliere", as 'beroep' in Acte van de burgerlijke stand might mean.

i.e. 

This is from a marriage certificate, it also shows on a birth certificate of one of her children.

Somebody 'well off', with enough means to provide for his/her own livelihood. Does't have to work for a living.

-Bart- - vandaag — 20:03:

Somebody 'well off', with enough means to provide for his/her own livelihood. Does't have to work for a living.

Not necessarily, the use of the word seems to vary from region to region. In Zeeland I encounter it often in lower-class people who do not yet, or do no longer work for a living. So, not because they do not have to, but because they are either too young (especially girls before marriage) or too old to work.

Best wishes,

Carl

Thank you both! Considering the fact that her dad and other siblings were "arbeiders", Carl's answer appears the most likely solution.