Complex sentence: Hoisington's Army service goes back to early World War II. Women, with the exception of nurses were not officially in the Army during WWII, but rather were members of the Women's Army Auxiliary Corps.
Split into simpler sentences: Hoisington's Army service goes back to early World War II. Women, with the exception of nurses, were not officially in the Army during WWII. Instead, they were members of the Women's Army Auxiliary Corps.