Extra Credit Questions

[L Verge]

A few days ago, my grandson was on a Lincoln trivia page and started testing me. Thanks to this forum, I was able to answer a lot of the questions that I would have been dumbstruck by five years ago. Here are three that managed to stump me, so have your hand at answering these:

Abraham and Mary Lincoln only traveled once as a couple outside the U.S. Where did they go?

What Scottish love ballad was one of Lincoln's favorite songs?

Portions from one of Lincoln's favorite operas was played at his second inaugural ball. What is its title? For extra credit, what popular song of the 19th century was among the lyrics of the opera?

PS: One member of this forum is not allowed to answer at first because these questions come from an article of hers carried in USA Today.