1. In 1889, Benjamin and Caroline Harrison set up the first indoor Christmas tree where?

2. Which former Beatle had a holiday hit with the song "Wonderful Christmastime"?

3. In the holiday classic It's a Wonderful Life, George Bailey and Mary Hatch sing a duet to the "Gals" of what U.S. city?

4. What kind of animal "a-swimming" did my true love give to me on the seventh day of Christmas?

5. What California baseball team was owned by movie cowboy Gene Autry, of "Rudolph the Red-Nosed Reindeer" fame?

What’s the "Kennection" between all five answers?