Several names in the list of Abraham Krohn's descendant have links to (mostly Finnish) pages with additional information. In the following we have collected further links that might interest family members.
Reino Kurki-Suonio'sfamily page (in Finnish)
Contains, for instance, old letters by family members. Requires id and pswd that family members can ask from reino.kurki-suonio(at)tut.fi.
Krohnbuch
Krohn pages by Christoph Krohn (Germany), based on Max Krohn's book
Chronik der Sippen Krohn, Crohn, Cron, Croon (1939). Data on Abraham Krohn's descendants were provided by Ilmari Krohn.