A few additions to the family Vornier. Louis’ father was born in Saint-Mards-de-Fresne, departement Euse.  Not in Calvados as it somewhere is stated in a cert.  You can find the certs below on  
http://www.archivesdepartementales.cg59.fr/Marriage of Vornier Vincent - Leblanc Marie Joseph :  x  Lille, parish of Saint Sauveur  06/10/1778   (image 341)
- Vornier Vincent,  25 years,  ° Saint-Mards-de-Fresne, diocese of Lisieux, merchant grocer (marchand épicier), residing in this parish. Parents : Vornier Adrien and Faucon Barbe, both deceased
- Leblanc Marie Joseph, 22 years,  born and residing in this parish, dressmaker. Parents : Leblanc Pierre Joseph and Freville Marie Magdelene
 witnesses :  -  Rubruq Guillaume Joseph,  merchant.   Leblanc Pierre,  father of the bride.   
                   -  Freville Francois Joseph and Freville Seraphin Joseph, maternal uncles of the bride. 
Childeren
Baptism certificates   -  Lille, parish Saint-Sauveur    (= : means baptized)
- Vornier Louis Vincent Joseph  ° Lille 21/05/1779 / = 21/05/1779  (image 896)
    father : merchant grocer (md épicier),  present
    godfather : Leblanc Pierre Joseph.  godmother : Freville Marie Magdeleine
- Vornier  Francois Joseph  ° Lille 16/09/1781  /  = 16/09/1781 (image 62)
    father : ambulant merchant, pedlar (md forin ?),  absent because of his profession
    godfather : Freville Francois Joseph.  godmother : Therij Elisabeth Petronille Joseph
  +  31/01/1800 in the hospital at Calais, inscribed in the register at Lille 27/03/1803 (image 389)
      cannoneer of the artillery company named 2e de Lionne 
- Vornier Louis Fortuné Joseph  ° Lille 15/11/1792 / = 15/11/1792 (image 1155)
    father : merchant grocer  (md épicier), present
    godfather : Cambij ? Charles Louis Joseph (signature : Ouvrij).   godmother :  Cabij Marie Joseph
Birth certificate - civil registration Lille (French Republican Calendar)
- Vornier Adrien Joseph  ° Lille 23 pluviôse year  2 or  11/02/1794   (image 368 - 369)   
  father : 40 years, merchant grocer  (marchand épicier)  mother : 37 years,  address :  rue des Etaques  at Lille
  Witnesses :  Francomme Melchior François, 29 years, cotton merchant, address : rue des Républiquains  at Lille and
  Demori Marie Angelique Victoire,  23 years, dressmaker, address : rue de l’Arc at Lille,  wife of  Noblat Balthazar Joseph
Vornier Vincent   + Lille 10/08/1821  -  (image 709)
72 years old, native of Saint Marcq, owner  (propriétaire), husband of Leblanc Marie Joseph, son of the deceased  Adrien and Faucon Barbe,  died  at 17:00 in the house situated in the Rue Fivel n° 43.  The declarants are Eycken Louis, 45 years, merchant and Dequeker Louis, 30 years, watchmaker, both friends of the deceased.