I'm researching my Cornish roots and the occupation of the person on the census, often young women, is 'DUPMAKER'.
Is it connected with the mining industry?
Olive Tree Answer: Jim, this was an intriguing question! I could not find an occupation "dupmaker" anywhere. As you noted, it was most often used for young women. So I had a hunt and discovered that there are many genealogy researchers asking this same question. The consensus seems to be that it is a case of old handwriting being misinterpreted and that the actual occupation is "dressmaker"
I will have to leave it to you (or interested readers) to decide if this seems accurate for your specific case. I did have a look at some census where this word is used, and I can see how it could be "dress" and not "dup". But I cannot tell you with authority that this is the correct interpretation. I hope someone else can!