My one and a half year old also has Wry Neck. I think she was afflicted from a very young age. She never stayed with the others. She cried a lot. The wry neck came out about six months ago. Nobody knew what it was. I gave her vitamins in her water--a form of gatorade--and she seemed to recover. She has always been the big egg layer and the odd one out. Three days ago the Wry neck came back very badly. Again no one knew what to do. I should have gone online rather than ask at Tractor Supply. Just at this time a hawk--I think--got my favorite hen: Goldie, the Rhode Island Red. Goldie was the glue that bound all the chickens together. She also came to me first and stuck close to me. She got along with everyone. She was not the leader, but, oddly, she kept the cogs moving. I cried bitterly when I found her eviscerated body. This was my first hawk episode. I buried her in the corner of our yard. In the meantime, Rocky, with her Wry neck, was getting worse. I got onto this site and bought a myriad of things: Poly visol. My Wal-Mart didn't have the one suggested but did have one w/o iron. I had some prednisone left from a bad bout of poison ivy. I mixed 10 mg. in water. I first gave the Poly visol, but I got on this site and thought the dosage was far too small so I ended up with softgel vitamin E capsules. They came in IU counts so I looked up the approx. equivalent to mgs. which seems about .67. Anyway, I decided on one IU 400 a day. It was hard getting it in her mouth. This morning I squeezed it on scrambled eggs. She is still around. I had four hens. I have three. One is this Wry Neck hen. The poor dears are all confused. The glue is gone. They hide in the bushes. They often don't come when I call. They lay eggs not in the box but in their roosting shelter. The Wry neck hen lays her eggs in the corner of the pen. I haven't stepped on one yet. Oddly, her eggs are the largest. I, too, wander around feeling unhinged and unglued. People think chickens are chicken, but I think they are very brave given their predators and their vulnerability. I could keep my girls penned all day. They just seemed so unhappy. I thought the plastic owl was working. Nothing happened last summer nor until this September, but fall is in the air; and I think birds are storing up food. I will let you all know about Rocky. She had a very tough early life. I nursed her through it. But she is a great fighter.
I'm so sorry to hear of your loss and your struggle with wry neck. Here's a good article to read if you haven't already found it.
http://www.browneggblueegg.com/Article/Crookneck/Crookneck.html
Selenium is important to add to ensure the vitamin E is being absorbed. And i personally found the addition of B complex vitamins to be what finally cured my little guy. Wishing you all the best!