I am thinking of starting an all-ages list for J/C fans […]

Coordinate term: content farm

Janice Liedl (see Further Reading) has documented balls organized by Lady Aberdeen (consort of the Governor General) in Ottawa (1896) and Montréal (1898), at which guests dressed as 'Vikings and Viqueens', so affirming, as Lady Aberdeen wrote in her diary, the 'Vikings first discovering Canada'

The reputation for low infectivity of rubella was probably based on failure to recognise rashless cases.