Pierre J. Desmet
Roman Catholic Missionary Services
began in Idaho on Sunday, July 10, 1840,
in Teton Valley, follwed by a mass
held near here at Henry's Lake, July 23.
Pierre J. DeSmet, a Belgian Jesuit leader, ac-
companied a Pend Oreifle - Flathead band on
their way northwest to their homeland. Climbing
a mountain here, along streams “descending from
dizzy heights, leaping from rock to rock with a
deafening noise,” he invoked divine thanks
for his successful tour into Idaho and Montana.