In the little galaxy of Category Theory, Friedrich Ulmer is known for being one of the authors of Lokal Präsentierbare Kategorien, a book that laid the foundations for the theory of locally presentable categories.
Unlike his coauthor, Pierre Gabriel, we do not have much information about him, or at least I can't find much.
From the Genealogy Project we know that he did his PhD in Zürich in 1964 under Dold and van der Waerden.
According to Scopus, we only have 7 documents by Ulmer, even though other documents can be found with a bit of struggle on the internet. With a bit of help from google and semanticscholar we find a couple of more entrencies. zbMath lists a total of 12 publications by Ulmer.
I can't find a complete bibliography of his, nor I can tell whether he spent his life in Academia or outside of it.
Does anybody have better luck then me? Or happens to have more information? What I was looking for is something like this one or this one. Of course, there might be nothing more to say.