M.R.
When you say it is taking her an hour or more to fall asleep, what is that like? Is she in her crib talking to herself, flipping through a book, or playing with a toy? If this is the case, I wouldn't worry much at all. There are some people who fall asleep when their head hits the pillow and then there are some who entertain a little before falling asleep. In my opinion, this is fine as long as she isn't screaming or pitching a major fit.
Often our son takes 15-30 minutes before he falls asleep. He is either tucking in his toys and saying "night-night" to them, reading his book, or talking to himself - which is really cute because he usually talks about the events of his day and names places we went or people we saw. He's been doing this for a few months now and STILL takes a 2-3 hour nap in the afternoon and sleeps for a stretch of 12+ hours nightly.