The last two times I’ve taught my quantitative economic history course, I have assigned a micro-data collection project based on the 1901 Census of Canada. All in all, this data collection was a good experience for the students given they got some direct experience collecting primary data, coding it and then analyzing it. Moreover, I now have a small data set of household heads from the 1901 Census with data on age and total earnings. The 1901 Census asked what the earnings were from an occupation or trade as well as any extra earnings from other than the chief occupation or trade. As a result, I have been able to construct age-earnings profiles that unlike modern ones show rather steep declines in earnings after the mid-forties. Modern profiles show relatively moderate declines after age 50.