HIDDEN FOREST
Credit: Chicago Tribune Crossword
Annabel Michaels (Idea and #1-4)

 The answers to the clues below will have something in common.

1. Secondary locations
2. Naval vacations
3. Spent a restful night
4. Liner luggage
5. "So far so good"
6. Genealogy diagram
7. Type of vessel
8. Family history

HINT:
The title is a clue.

Answers:

1. Branch offices
2. Shore leaves
3. Slept like a log
4. Steamer trunks
5. "Knock on wood."
6. Family tree
7. Bark
8. Roots