What were Vincent van Gogh's first 3 jobs?

His first job was as an assistant at an art dealer's in London. He then became a substitute teacher, a preacher and a social worker. After that he became a painter.

Explanation:

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.

there is no chart here so no one can answer this.