Could it be a paraphrase/summary of the following passage?
"There were transported of them into Spain, Flanders, Franc, 34,000
Soldiers; and of Boys, Women, Priests &c. no less than 6000 more,
whereof not half have returned"
Petty, Political survey of Ireland, 2nd ed., 1719, p. 19. The rest of
the figures may have been worked out from the following page.
Daniele Besomi