Complex sentence: On May 3,1936, Maggie's father died, leaving the farm to her brother, and establishing a trust fund for her mother, of which the balance she would inherit when her mother died on November 20,1936.
Split into simpler sentences: On May 3,1936, her father died, leaving the farm to her brother, and establishing a trust fund for her mother. Laubser would inherit the balance of the trust fund when her mother died on November 20,1936.