Yes, you can have Autumn if you go to him first and then go through mom, or at least I was able to. Again, everything comes with a caveat for the pool party just because there were so many bug fixes, versions and changes, so YMMV. I could not get to Autumn if I went to mom first but I was able to get to Autumn if I went to Elijah first, whether I succeeded with him or not. I have avoided the path where he agrees to let you use the pool almost every time and I am able to get his mom 100% of the time and Autumn any time the other conditions were right.