Hello. I found this thread by googling ‘Spanish in Holmfirth history’ as I have similar mysterious Spanish names cropping up in my family tree. My great, great grandmother had siblings called German (pronounced Herman I believe) and Reyia, both of which have Spanish origins. They were born in 1851 and 1847 respectively, so not that long before your Hosetta. I haven’t found any indications of any further ‘spanishness’ of their parents, and their other six siblings have pretty normal names for the time. Interestingly, my grandmother on this line had very dark hair, dark eyes and skin, unlike the rest of the family, and my mother used to say ‘definitely some Romany in there’, although with nothing to back this up.