My mother's paternal side was done years ago. We found a "book" someone had done on her mothers maiden name, and that was helpful. My father's paternal side has been much more difficult...sadly there is no one living to give info. Have discovered a ton of info through Familysearch...sent away for some certificates, and done a lot of online searching. Haven't really tackled dad's maternal side yet. DH family is mostly done....and yes...it is addicting!!! So far no "famous" lineage...lots of shady characters, and "that explains a lot" moments!!