Which preposition to use with southrons

of Occurrences 2%

If I may say it, every Southron of the old régime was a statesman by nature and training.

after Occurrences 1%

The French behaved as did the Southrons after Bull Run: they gave their formidable foe time to rally, and to recover from the effect of the panic that had covered the country with fugitives; and time was all that was necessary for either the English King or the American General to prevent defeat from being extended into conquest.

Which preposition to use with  southrons