Interesting how Teichmueller has a bunch of stuff named after him, yet there's very little information about him to be had. There are some references on Google Scholar: https://scholar.google.de/scholar?q=%22o+teichmueller%22&btn.... He is certainly published in more than a single journal, however.
On the other hand, Felix Hausdorff, who also appears to have worked in the same field (though topology is probably a far broader field than I can understand) has plenty of information readily available. This is conjecture, but the mere lack of solid information on Teichmueller could lend credence to some of what you say.