Card Family Reunion

I believe this photo was taken in Nova Scotia and even though the back of the photo says Card Family Reunion, there may be many of the Burgess clan there as well. I have no idea who any of these people are, except I know at least some of them are my Card ancestors. I'm hoping someone can ID some of these people. Thanks so much

Can you help answer this question?
Who are these people? Do you recognize anyone? I think this is a photo from the early 1900's.