Have now tried both of those options with no luck. Aslo tried a variety of leather cleaners, conditioners and spot removers.
One of the boys in our school carpool sat down with a pen in his pocket, apparently with the point out.
What percentage was the isopropyl alcohol?
Maybe some denatured alcohol....... mineral spirits.....
Test on the bottom of the seat, you will probably be stripping the color out of the leather.
If nothing else works, might want to try 90% alcohol? Maybe soak a cotton ball or rag and just let it sit there for a while?