http://www.jwfacts.com/watchtower/failed-1914-predictions.php
one thing to keep in mind. JWs for many years will promote ideas that are not ever put in print. 1975 is the best example. If you lived through 1975 you know that talk after talk around the world promoted that 1975 was going to be the year. They never actually printed that statement though. JWs then can go back and say that it never happened because it wasn't in print, especially those that didn't live through it. You're embarking on a pointless journey in my opinion. No matter what you show her, she will have a retort or excuse.