I would think people who hand painted China would be similarly vulnerable, although more due to the heavy metals in the pigments than the radioactive luminescent paints you refer to.
Who else used to keep their compass with luminous figures under their pillow at night (to stop my brothers pinching it!)?
Unfortunately the numbers of oral cancers are increasing. Many related to the Herpes virus. Hence the usefulness of the HPV vaccine.
The usual culprits of alcohol and tobacco appear too. Especially chewing tobacco.
A thing called Betel Nut which is also chewed,
And of course some appear in people who one would expect to have no predisposition
When people used Snuff, they used to get nasal carcinomas.