I'm not sure I'd call him "unheralded". When I saw that description, I thought, "huh, there's someone other than Zuse I should know about?", but then the article was about Zuse.
I mean sure, he's not Turing- or Von-Neumann-level famous, but in both those cases their fame largely stems from their involvement in a number of other things as well (Turing's early AI writing and theoretical models of computing, and Von Neumann's role in the Manhattan Project and game theory). Zuse is pretty famous in comparison to the other computer-builders of the era, e.g. John Mauchly or John Vincent Atanasoff.
He is also pretty well known in Germany. That (I guess you could call it local fame) seems about appropriate for what he did. He is no Turing, after all.
The new computer science and automation building of my university in Germany (now the second largest building on the campus) was named after Zuse. I would say that’s quite the honor and recognition, especially considering the other buildings are named after Humboldt, Newton (mechanical engineering), Kirchhoff (electrical engineering), Helmholtz, Leibniz (library), Röntgen, Curie and Faraday.
I mean sure, he's not Turing- or Von-Neumann-level famous, but in both those cases their fame largely stems from their involvement in a number of other things as well (Turing's early AI writing and theoretical models of computing, and Von Neumann's role in the Manhattan Project and game theory). Zuse is pretty famous in comparison to the other computer-builders of the era, e.g. John Mauchly or John Vincent Atanasoff.