Complex sentence: They married soon thereafter and moved to Argonia, where she became a leader in the local Woman's Christian Temperance Union organization, and in 1883, she gave birth to the first baby born in Argonia.
Split into simpler sentences: They married soon thereafter and moved to Argonia, where she became a leader in the local Woman's Christian Temperance Union organization. In 1883, she gave birth to the first baby born in Argonia.