Hi Lynda, Welcome to the forum!
I live in Ohio, but I haven't done any precious metals. I just slam around Aluminum. As much as I spill, I'd be scared to do Gold.
If your ever in Columbus, you could check at the community arts center. I know they have some bronze casting classes, maybe someone would know of a caster who work with Gold and Silver. I can't think of the street or it's real name, but it's on the south end of downtown near German Village. Seems like it's The Columbus Community Center for the Arts. I'll Google it.