I am trying to locate the 2 daughters of Frieda and Alfred Pieren (both deceased Reno NV). Their ...

I am trying to locate the 2 daughters of Frieda and Alfred Pieren (both deceased Reno NV). Their names are Heidi and Christy but I do not have their addresses or married names. I am a friend of the past and live in Maryland and knew the family befire they relocated out West. Trying to touch base with Heidi and Christy. Any help or contact information would be appreciated.... thank you.