It’s definitely worth a try emailing the museum Mark. Hopefully they will agree to scan the pages.
I came across the Hull History Centre website today and they have earlier letters of Amy’s available to download. Reading her handwriting is indeed hard going at times! I noticed that she often shaped the letter n more like a u which made me wonder if “Severus” was a misinterpretation of Stevens or something similar but that is only a wild guess!
https://www.hullhistorycentre.org.uk/research/research-guides/amy-johns…