Thanks for pointing me to iCloud but even after quite a bit of reading, I can't figure out how to share our Calendar entries but not our bookmarks. If I understand correctly, I could solve the bookmark problem by using different Apple IDs for each profile, but that would distroy our shared calendar. But maybe I'm not understanding how to work with "family" iCloud accounts.
Playing with the iCloud settings solved my problem. Thanks for pointing me that way.
For the record and anyone else with this dilemma:
We have two profiles (as in sign ons) and a bunch of Apple IDs.
To make things work the way we want, we both sign into iCloud with the same Apple ID.
Then, I signed into my wife's profile and went to System Preferences/iCloud and unchecked Bookmarks. (She doesn't really use the cloud because she doesn't have any other Apple devices, I'm the one with another Mac, iPhone and iPad).
When I sign into my profile and go to System Preferences/iCloud, I have everything checked so all my devices sync and our calendar syncs in both accounts.
We use a different Apple ID for iTunes but that's another story.
Thanks for pointing me in the right dirrection!