Deletion of Ernst Julius Amberg

Comment: The notability guidelines for academics are more aimed at the present day than at mathematicians of the late 18th and early 19th century. And we do have one in-depth source on the subject http://www-history.mcs.st-andrews.ac.uk/Biographies/Amberg.html. If we had a second source, independent of that one and more in-depth than https://www.genealogy.math.ndsu.nodak.edu/id.php?id=9700, I think he'd pass . He doesn't appear to be significant except as a teacher of Einstein, but significance is different than notability
Stance: delete
Cited policy: Wikipedia:Notability (WP:GNG)