The Events Committee found or created the profiles for the athletes we'll be using in the challenge. They come from a handful of countries that are known for having good records for research. With the way we are forming the teams, there should be a good mix of WikiTreers from various locations so you should have people on your team who would be familiar. Also, each team will be given 4 athletes to pick from a few days before the event. It'll be up to each team to decide if they want to focus on just one of them or work on multiple.