It's hard to know how accurate that is. Is the LLM truly imitating text from that era, or is it imitating a modern idea of text from that era? Also, safety/alignment training would probably prevent it from embracing many of the ideas from that era, even in roleplay.

There's 'uncensored' versions of Qwen 3.6 35B at Q6 and Q8 quantization levels (somewhere from 28GB to 40GB on disk as GGUF files) out there now that won't refuse any prompt. Imitating a Victorian era person is very tame compared to what you can get it to output.