The wagon trains to California greatly decreased in 1851 as reports of deadly cholera on the trail the year before and strikeouts in gold prospecting became known. Those who did go west--about 2,160 men and 1,440 women--tended toward Oregon's rich Willamette Valley because of a new federal land law that awarded a husband and wife a full section. Volume 3 of Covered Wagon Women contains the diaries and letters of six Oregon-bound women, as...