Complex sentence: She was married to Tachibana Sōsaburō and moved to Portland, Oregon; their son Munekazu would be the third victim of the Amakasu Incident in 1923.
Split into simpler sentences: She was married to Tachibana Sōsaburō and moved to Portland, Oregon. Their son, Munekazu, would be the third victim of the Amakasu Incident in 1923.