As the public scrutiny of the body of work we now refer to as Modern Monetary Theory (MMT) widens there is a lot of misinformation abroad that distorts or otherwise undermines what has been done to date. Most, but not all the misinformation or emphasis comes from those who attack our work. Their criticisms usually disclose an incomplete understanding of where MMT came from and what the core propositions and logic are. They stylise, usually using terms and constructs that are present in mainstream thinking, but inapplicable to an MMT way of thinking, and end up spitting out things like ‘printing money’ etc, which they think represents a devastating rejection of our work. As part of my own work, and I do this in liaison with Warren Mosler, I am interested in documenting the train of events that led to what we now call MMT. I love history and think it is very important in helping us understand things. So today I am continuing to examine archives to trace the provenance of key MMT concepts. And I am continuing to document the idea of a Job Guarantee, which is central to the MMT framework, despite many who claim to be MMTers thinking otherwise. I have noted in the recent press, claims that the origins of the buffer stock employment approach that became the Job Guarantee was the work of Hyman Minsky. Nothing could be further from the truth as you will see. It is important, in my view, to make the provenance very clear and that is what this blog post is about.