A fascinating aspect of Twain’s life that I for sure never heard of, Nina, but this article leaves something to be desired.
For one, it’s too short. Would need at least 1-2 more examples to establish a pattern.
The heading is clickbait. I get that you use Twain’s own word “collect”, but we know Twain was inventive and provocative with his word choice. Unless he actually rounded up young girls and held them in captivity, it is misleading to make the claim in the title.