Ken, you would have come across this sometime but I was very pleased to be the bearer. As you say, this is a very important, a defining, discovery.
Diane will be providing a list, to me I think, of the meanings of terms such as generosus, and I propose to try to contribute a spreadsheet of the information she has gleaned when I have it altogether, but I couldn't wait to send you your news.
Generosus, by the way, I am confident will be shown to mean "gentleman". I believe the essence of the term gentleman is that, whatever he did do, he was not obliged to work for a living. In other words, he had independent means. In days of no income or estate taxes, if a man was prudent, such status could be passed indefinitely down generations. We had the term gentleman farmer, which in effect meant that he had so much land that he could employ workers or receive rents - or both. Such a man could even be a tenant himself but of such proportion that he could sublet.
Glad your researches are coming together.
Bill