On 17 February 1927, Emilie Anna Ludwig, nicknamed Milly, was born in Dudelange. After her primary school in Burange, she attended a municipal high school. It was during the war years that Milly Ludwig started athletics. She was a member of the "Cercle des Sports Union Dudelange". Milly Ludwig's victories: in 1945, she won the national title in shot put and long jump (national record); in 1946, the national title in shot put, discus throw, long jump and 80 m hurdles (national record); in 1947, the national title in long jump. She participated successfully in sporting events: in 1946 at the European Championships in Oslo, in 1947 at the World University Championships in Paris; in 1948 at the Summer Olympics in London (16th out of 26 in the long jump).
When she married Guy Steinmetz, a teacher, in 1953, she gave up her job as a secretary at the Ministry of Justice. Her two sons were born in 1952 and 1959. Later, Milly taught in a sisters' school.
The great sportswoman contributed to the creation of the basketball federation in Luxembourg and was a founding member of T71 Dudelange, where she worked as a coach for many years.
In 1980, she co-founded the first crèche in Dudelange. In 2008, Milly was named "Chevalier de l'Ordre de Mérite du Grand-Duché de Luxembourg".
Milly Ludwig died of cancer on 29 June 2011.