Uh. Just because it was ok to photograph naked little girls in Victorian england doesn't mean that you aren't a pedophile for doing it. It doesn't mean you ARE, but the fact that Carroll was inappropriately attracted to young girls is generally accepted knowledge - yeah, that's not DNA evidence or anything, but come on.
Consensus amongst those who have actually studied him is pretty straightforward - that he was
not sexually attracted to young girls, but that he was socially awkward and had trouble forming adult relationships. Testimonies from children he photographed to their parents to his peers have pretty much exonerated him, but people have still created elaborate conspiracy theories.
This myth that he's a pedophile is ridiculous. Was Mark Twain a pedophile as well?
It's pretty much accepted that he died celibate.
... As for this so-called 17-year-old, I was told in Grand Bahamas that she was 22! So it's all good.