After Lenel's death, the members of his family met a cruel fate in Nazi Germany: His widow of more than 80 years of age, Luise, née Eberstadt (born 25 February 1857 in Frankfurt) and his daughter Bertha Lenel (born 7 March 1882 in Freiburg) were sent on 22 October 1940 to an internment camp in Gurs, France.
Following Lenel's death, the members of his family faced a cruel fate in Nazi Germany: His wife, Luise Eberstadt (born February 25, 1857, Frankfurt), and daughter Bertha Lenel (born March 7, 1882, Freiburg) were sent to an internment camp in Gurs, France on October 22, 1940.