I don't know what kind of scope this paper covers, but as a white american, born and bred, who can trace ancestry back to not only the Revolutionary War but even the original group of the Jamestown Colony:
I have spent time in other countries, and during their cutural-specific holidays I participated in them. I wouldn't say that I "celebrated" per se, it was more experiencing the culture than a meaningful celebration of what the holiday stood for. That, and it's just plain fun.