That question has been asked before. And answered. In https://discussions.apple.com/thread/3742441?tstart=0
Google found it for me when I asked them about APPLE SAFARI BOOKMARKS STORAGE LOCATION. Quite a useful tool, a search engine.
After a clean reinstall of Mavericks put in by the Apple Genius Bar for me, I used the copy of other programs I had made previously with TimeMachine. On my account on our 2009 MBPro the old Safari bookmarks emerged as if by magic. On my wife's separate account (just a user account, not a full partition) no such luck.
How do I find her bookmarks on the TimeMachine copied storage hard disk?