I'd give baby oil with e a try next time. It's what we used to use on horses who we would get in who's tails had been braided and left up for a LONG time, and had ungodly knots, often with burrs. It really helped to loosen the knots.
Excellent suggestion Stacey, I will give that a try today..

, geeze, I used watered down conditioner and baby oil trying to soften the two knowts behind her ears. I brushed VERY gently with both a slicker and a regular type of brush, but to no avail. As I write this, my 16 y/o daughter is working on the knots with a her fingers and a brush.