You can add your mtDna to FTDNA and make sure you pick the family finder. Also I would look up FTDNA and ask them the best way to do that. I looked up the number for you and it is 713-868-1438. Do you have any male Cannaday/Cannadys? BTW are you from the John - Wagstaff - Hugh Cannaday group from NC?
Good luck with this.