A graphical history flow-charting the origins, mergers and acquisitions of letterpress type producers in the UK, France, Germany and the US. Each rectangle to name associated principals and designers with links to additional information. This ambitious project will be tackled after publication of Volume I.
In the meantime, research of this subject has progressed to in-depth forum topics on the history of certain TFs in these countries:
Furthermore, topics discussing non-US typefaces are tagged with the country of origin, so they are listed with producers.