Johannes Rogier in entry for Louis Julius Rogier, "Netherlands, Archival Indexes, Miscellaneous Records"
"Nederland, Indexen van de Archieven, Primaire Archiefstukken (BS en DTB), 1600-2000," database,
FamilySearch (
https://familysearch.org/ark:/61903/1:1:QLZW-QV9J : 23 August 2017), Johannes Rogier in entry for Louis Julius Rogier, Birth 15 Sep 1910, Utrecht, Nederland; from database,
openarchives (https://www.openarch.nl : 2016); citing Utrecht, archive 463, inventory number 150-02, record number 2502; ; Het Utrechts Archief.