Yes Leroy the origin will already appear on the bag, e.g. Colombia SWP Decaf is from origin Colombia, etc.
For blends, they print a small tag on the bag showing the percentage of each origin in the blend which is very handy when roasting for the first time.
So that satisfies the origin question.
However, if I'm not mistaken, the question about origin you are perhaps really trying to ask is that of provenance, e.g. region/department/section and farm or estate identification, etc.
I have not attempted to identify such information from the SWP Decafs I purchase because I assumed already that it's their IP.
But, I would very much doubt they would reveal such information on some of their more popular origins such as Colombia as it then exposes and risks all the hard work undertaken by their green bean sourcing and the R&D teams. You must remember here they are large buyers of direct trade that spend upwards of a million $$ each year just in the efforts to source and evaluate coffee. This is before they even start the production process and sell their products.
They, like Illy, Nestle, Starbucks and many large companies over 250+ tons per year have teams of people out hunting, negotiating and lab testing lots and samples - they don't source via brokers like the majority of companies around the world. This investment of cost and effort needs protection.
Revealing the farm information is like chopping off your only market advantage. But of course they might do this for smaller lots from less popular origins or where they have sourced something as a one-off.
Competitors (and that includes everyone involved in coffee) swoop in and attempt to steal the next crop from under your nose. It's happens all day every day.....even when you use local brokers. Case in point, 3 weeks ago I had some very nice and expensive coffee (read.... I really, really wanted that coffee more than anything) contracted on the phone with the broker. By the time the call was finished, one of the broker's associates had already booked the coffee to another roaster and I missed out.
In terms of roasting styles and philosophies, everyone has their own approach. Mine is different to Maria's & Shrub and that's my unique point of difference. I tend to think their roast depth is too dark.