Hi Evie,
Yes, that is exactly what I was thinking. Do you have any idea of (very) approximately what percentage of people would be classified as having a "disability" in say the 1901 census? I mean, if I was to look at 50 households, and say 5 households had an x in the column for some persons, and none of the 50 households had no other writing in that column, would this mean that the 'x' probably meant disability, as one would expect at least someone from 50 households to be disabled?
Thank you.