I thought I would post this link to a Port. Jew. Comm. dossier that google translates as "Copybook of outgoing pieces by Isaac Orobio de Castro" It is found at no. 874 A number of families of interest here are discussed in this book. For example, this link is to some sort of discussion concerning Abraham Baruch Louzoda from 1752 (lower right quadrant).https://archief.amsterdam/inventarissen/inventaris/334.nl.html#KLAD00164000024