He then undertook numerous missions to the Iroquois at great risk to his personal safety, and lived within Onondaga and Mohawk territory.
[1] Around 1653, Le Moyne set out on an Iroquois Mission, at great risk, that would take him through the St. Lawrence valley and into Lake Ontario, where he would reach a fishing village in present-day Oswego.
After converting a large number of the Iroquois, including some chiefs, Le Moyne returned to Canada with a favorable report.
During 1657-1658 he journeyed from Ossernenon (Auriesville, N.Y.) to New Amsterdam (New York) to attend to the few Catholics residing there as well as some French sailors who had recently arrived in port with a prize.
The Le Moyne College seal includes downturned arrowheads which symbolize his work on behalf of diplomacy and peace.
It also depicts flowing waters, to symbolize both the ritual of baptism and Father Le Moyne's discovery of the value of the Onondaga salt springs.