Founder of the Spener Research Center and the Edition of Spener Letters
- born 1930 in Erfurt
- 1961 Promotion in Zürich (under Gerhard Ebeling)
- 1968 Habilitation in Tübingen,
- 1971 professor for church history at the Ruhr University in Bochum
Research areas: Lutheran Orthodoxy and Pietism - since 1984 corresponding member of the North Rhine-Westphalian Academy of Sciences and Arts
- 1985 Establishment of the Spener Research Center (DFG) in Bochum
- since 2002 Honorary Professor at Humboldt University in Berlin
- died 2021 in Berlin
Literature by and about Johannes Wallmann in the catalogue of the German National Library