Well then too, there are some states that never ratified the 16th. amendment. There’s plenty of back and forth on that but it’s an interesting read:http://www.givemeliberty.org/features/taxes/notratified.htm
None of the new states admitted to the union after 1867 (Nebraska, Colorado, North Dakota, South Dakota, Montana, Washington, Idaho, Wyoming, Utah, Oklahoma, New Mexico, Arizona, Alaska, or Hawaii) would have ratified the 13th. Amendment either. So, big deal!