Complex sentence: Her education was in Brooklyn, where she attended James Madison High School on the commercial track to learn typing and stenography but also joined the debating team, whose medal she won in her graduating year and where she met her future husband, William M. Krasilovsky.
Split into simpler sentences: Her education was in Brooklyn, where she attended James Madison High School on the commercial track to learn typing and steno but inveigled a position on the debating team, whose medal she won in her graduating year. That was also where she met her future husband, William M. Krasilovsky.