Have you found anything since your posting? This marriage record from Genlias looks like it must belong to someone in your ancestry. Perhaps this bridegroom, Augustus, had a son named for his father, Eduard, and perhaps that Eduard "junior" was your grandfather.
Source Civil register - Marriage Archive location Rijksarchief in Limburg General Number of finding aid: 12.125 Item number: 73 Municipality: Weert Type of record: Huwelijksakte Record number: 0 Registration date: 01-01-1890 Bridegroom Augustus Franciscus Jacobus Hubertus Janssens Place of birth: Weert Bride Hannah Elisabeth Colbeck Place of birth: Weert Father bridegroom Eduard Peter Francis Janssens Father bride Simeon Colbeck Additional information Bgm wdnr.Betr.inschr.Huwel.gesl.te Batleij,Distr.of Dewsburij,county York Engl.
This looks like the marriage of the grandparents for Augustus above--
Source Civil register - Marriage Archive location Rijksarchief in Limburg General Number of finding aid: 12.113 Item number: 16 Municipality: Thorn Type of record: Huwelijksakte Record number: 0 Registration date: 18-10-1843 Bridegroom Edouard Pieter Frans Janssens Date of birth: 03-01-1816 Place of birth: Grammont B Bride Maria Theresia Parren Place of birth: Thorn Father bridegroom Pieter Janssens Mother bridegroom Maria Justina Mertens Father bride Hendrik Philippe Parren Mother bride Maria Ludoviva Philippina Graeven Additional information >
Let me know if any of this fits with what you know about yor family. Joan