NB: The graph in the link shows only male occupations. If you click through the graph you can see both male and female occupations. Two major trends: the near

NB: The graph in the link shows only male occupations. If you click through the graph you can see both male and female occupations. Two major trends: the near disappearance of Farmer and Farm Laborer; and, the sharp influx of women into the workforce from 1950 to 1960.