Henri Eyraud (1892-1994). Studied mathematics at the University of Paris and received his doctorate in 1926 with a thesis on “Metrical spaces and physico-geometrical theories”. From 1930 professor of mathematics at the University of Lyon and director of the Institute of “Financial and Assurance-Sciences”. Perhaps he considered his papers on the geometry of unified field theory as a sin of his youth: In Poggendorff, among the 33 papers listed, all are from his later main interest.