Although she continued to receive a small pension from the French government throughout her lifetime, Marie-Louise chose to pursue a career as a nurse and was awarded the Legion of Honor for her medical services during World War II.
Meskipun ia terus mendapatkan tunjangan kecil dari pemerintah Prancis sepanjang hidupnya, Marie-Louise memilih untuk berkarier sebagai seorang perawat dan dianugerahi Légion d'honneur berkat pengabdiannya selama Perang Dunia II.