Which Augustana team?

In 1966, Augustana (SD) played Augustana (IL) for the first time (the only other game between them was one year later), and besides sharing the same name they had another couple of similarities:

1)  Both teams were nicknamed the Vikings

2)  Both teams had the same school colors

3)  Both teams had a assistant coach that had a last name of Kessinger

For the record, Augustana, IL was the first of the two to field a team (1893) - 27 years before the Vikings of Augustana, SD...