I may be wrong, and if I am feel free to correct me, but I don’t think Lisa Loring ever did hard-core porn if that’s what you’re refering to. She was married to a porn star named Jerry Butler, but I believe she only did a few nude scenes in a couple of mainstream movies.
IMDb lists no porn work for Lisa Loring, though she does appear to have a few schlocky movies under her belt.
Jackie Coogan was a friend of 1920s kidnap/murder victim Brooke Hart and may have taken part in the lynching of the suspected killers.