I am looking for information on my great-great grandfather Jacques Francois Deweirdt born about 1840 in Lokeren. He was married to a Julienne Philomine Thierens. They moved to Roubaix France were my Great Grandfather Julien Deweirdt and Grandfather Henri Emile Deweirdt were born.
Julien Deweirdt married a Marie Louise Blondeel who passed after giving birth to my grandfather Henri in 1910 Roubaix France. Any information about this line would be appreciated.