Loebl, Kleinberger and Sperling in NEPIP provenances in American Museums

Harry Sperling, the grandson of art dealer Franz Kleinberger, became head of the firm F. Kleinberger Galleries. His cousin, Allan Loebl, an Art Looting Investigation Unit Red Flag Name, was in charge of the Paris office during WWII.

Below are the provenances of some of the artworks that transited via Kleinberger on their way to US museums.

How to use information in the provenance texts of Nazi looted art that has been restituted to find other Nazi-looted artworks

This Nazi-looted painting was restituted in 2016. 
https://www.lostart.de/de/Verlust/526702

Often, when a painting is restituted, it is the conclusion of a long and arduous process of archival research to establish the itinerary of the painting and the different actors involved in its looting (or sale, or transfer, or translocation). 

What happens if we take the NAMES that appear in the provenance AFTER an artwork has left the possession of the persecuted Jewish owner and plug them in to some powerful digital tools to check other provenance texts for their presence?

Could this application of digital tools provide clues that lead to other Nazi-looted artworks?

Red Flags in #Arthistory: Kleinberger

A search on Kleinberger in the German Historical Museum Linz Database returns five paintings

The name "Kleinberger" appears fourteen times in the French MNR database, five times in the German Historical Museum Linz Database and three times in the Art Looting Investigation Red Flag List of Names, along with "Loebl" (14 times) and "Garin" (6 times)