Angels are messengers, not actually people who die and go to heaven. Just what I was always taught.
I definitely agree with star-child. Of course, I cannot remember the names of things as it is. I do believe (without much evidence) that people can look however they want to look, in the "between." So, they might not look as you remember them. Also, they may be friends or relatives from other lifetimes, and you may have to expand your memories before you recognize them.