The class of people that van Gogh painted in general were peasants or lower class people.
Any people he knew.
Vincent Van Gogh
That is what a dedicated artist does.
He portrayed many of the people he met.
Oil paint and brushes.
No, he did not.
864 paintings by van Gogh are known.
The Starry Night is an oil-on-canvas painting by Vincent van Gogh.
using a paint brush
Van Gogh started to paint only after he felt he mastered the technique of drawing. This was in The Hague period. Van Gogh made a few (bad) sketches when in England.
Van Gogh used oil pastels I believe.
In 1881.