The primary source is indeed the endowment. Of course, the condition under which it receives the endowment is that the foundation can't spend the capital. It has to live off the interest.
Again, Mr. Johnson mentioned last week that the capital has now increased to somewhere around $147,000, I believe. In addition, there are some donations, but not many. The biggest donation was one made by the McCall MacBain Foundation back in about 2016.