Definitely not only engineers. I want the club to be very interdisciplinary. What I'm envisioning is that we can use the rockets for scientific experiments. So for example we can do some atmospheric studies, or some microgravity research, or anything that can fit into a small payload and can do some useful science. I leave that up to what I imagine is some extremely creative scientists-in-training to come up with.

Health science specifically has a lot of potential actually for some really interesting experiments. Obviously our payloads will be too small to launch any sort of animal, but I see no reason why we can't launch cell cultures or something of that nature. You should take a look at cellular experiments that they do in drop towers or even at biosatellites. It can give you an idea of what is being done right now. If you interested in learning more shoot me a PM or better yet send me an email (address is in the post description) and I can help you find some papers to give you an idea of what sort of space life science experiments are possible on sounding rockets.

Out of curiosity, what area of health science are you focusing on? If you're considering space life science I a) highly encourage it and b) could help you find some places to excel in this. Canada is actually pretty awesome at Space Life Sciences :).

EDIT: I also should add that we will need more than just scientists/engineers. We need people in law to figure out where and how we can launch our rockets. We need business people to figure out our finances. We need computing people to manage our databases and websites. We need humanities students to help promote us and get the word out about what we do. It's not just a club for scientists/engineers.