MERTENS, E. "François de Walque, Professeur émérite de la Faculté des Sciences", Annuaire - Université Catholique de Louvain, 1930-1933, pp. 68-71.
<b>1857 - 1914 > Louvain</b> Jean François Joseph Lambert, ° 3.4.1837; + 10.10.1929. Younger brother of Gustave (see that name). Professor of industrial chemistry at the University of Louvain from 1866 to 1914. Took non-silver photographic prints in 1857. Founder member of the ABP. First president of the Louvain section of the ABP, elected on 27.2.1895. Still a member of the ABP in 1922.