Analysis of information sources in references of the Wikipedia article "Oregon Trail" in English language version.
The cowards did not start to the Pacific Coast in the old days; all the weak died on the way. And so it was that we had then not only a race of giants but of gods.
The 1850 U.S. California Census, the first census that included everyone, showed only about 7,019 females with 4,165 non-native females older than 15 in the state. To find a "correct" census there should be added about 20,000 men and about 1,300 females from San Francisco, Santa Clara, and Contra Costa counties whose censuses were lost and not included in the official totals.