Donner Party
... that the main factors influencing survival amongst the stricken Donner Party pioneers were age, sex, and the size of each person's family group?
... that the main factors influencing survival amongst the stricken <b id="mwBWY"><a href="./Donner_Party" id="mwBWc" rel="mw:WikiLink" title="Donner Party">Donner Party</a></b> pioneers were age, sex, and the size of each person's family group?