The naked pictures in the days of the founders were for not available to most people, first and foremost because of the cultural restrictions, but also because of the state of technology.
Whatever naked pictures they had then were as common as finding an 11-leaf clover.
Pornography these days is as available as the air you breathe.
Of course they were, to whom wanted them. They were floating about society. Everything available today was available back then. You should learn your history.
https://historycollection.com/10-weird-common-practices-in-colonial-america-in-the-early-history/