Bitarova - surname of Gana

I’m searching for any information on the surname Gana from a town called Bitarova, Zilina district of Slovakia. I already know there were a number of family with surname Gana because I’ve researched them extensively on Ancestry. I believe my grandfather had at least 4 or more siblings but I haven’t been able to prove this connection. I would like to hear from Gana family members via email for private discussion. Thank you.