 Sigrid attended "lycée" — the French equivalent of American high school education — and subsequently studied international law at the Sorbonne, graduating in 1914.She taught French and English in Berlin for much of World War I.Some sources claim that while in Germany with her mother, she fell ill with what was believed to be tuberculosis, leading her to be forced to remain in Germany during World War I; however, Schultz herself (Schultz, p.viii) wrote that she remained in Germany due to her parents' illness, and that around this period she also studied history and international law at Berlin University (Schultz, p.viii).