The files of the Antwerp Police Immigration have recently been digitalized and posted on the internet......
Bernard Henri Apol and Elisabeth Hubertina Vruggink were married in Antwerp on 02 Mar 1878.
Bernard Henri entered Belgium (and Antwerp) on 05 Sep 1868, his profession was "painter in buildings", his wages were 20 centimes per hour (1 fifth of a franc). Elisabeth Hubertina entered Belgium (and Antwerp) in Feb 1876. She was a servant girl employed by a mr. Posenaer, a commission agent.
scans on https://familysearch.org/pal:/MM9.3.1/TH-1961-28169-23035-35?cc=2023926&wc=MMPF-24Q:981356320 and onwards.