This reminded me of a story my Dad use to tell. My parents were also Canadian but moved to the States after WWII. Like you, I also have dual citizenship.
Dad's high school's b-ball team had two people of color. Until I looked at the team picture a few minutes ago, I thought there was only one person. The team made it to the playoffs in Toronto sometime in the mid/late 30s. The coach hesitantly approached him and asked if he would share a room with his black teammate as they would need to spend the night. Growing up with 9 siblings and not much money, he had no problem sharing. He did not hesitate to agree. It wasn't until he grew a little older that he learned about how many people would have expected him to respond to the request. Having said that, I know he would have made the same decision. He was friends with Doc (I think his teammate went on to become a doctor) but I really do not know the rest of the story and now no one to ask.