Firstly from my Melrose one-place study the Melrose parish registers include a burial register from 1781 onwards which includes causes of death, including many cases of smallpox.
Names, addresses and ages at death are also given. The pre-1820 Melrose parish registers have been transcribed and indexed, and a PDF version of the resulting Scottish Record Society book is readily downloadable from archive.org. I intend to analyse these burial registers more fully soon as part of my one-place study, including analysing the causes of death as given.
I also have a nice reference to smallpox from my own family history. In his memoirs my distant uncle Andrew Usher (1782-1855) who founded the whisky distilling dynasty in Edinburgh recalled his smallpox inoculation, at his family home near Darnick:
I was born and brought up at Toftfield and the oldest circumstance I remember about that place is that when the doctor came to inoculate the family with the smallpox (vaccination had not then been discovered) as I thought it was something very painful I ran away. My father came after me and when in the act of taking me home his heart failed him and he said to himself ‘What if I should be leading the laddie to his death’ (for children so inoculated not infrequently died) and he set me at liberty again. I was, however, persuaded to go into the house and seeing what a simple matter it turned out to be, I presented my arm to the doctor. It so happened that I was very slightly affected while some of the rest were very ill. I had no fever and kept singing away as usual. One of the servants asked me how I could sing when the rest were so ill. My reply was that I would sing as long as I was able.