 Adrian was more adventurous than his brother Christian, but his manner of speaking was more introverted, with a generous use of First Nations expressions.He scarcely reported to the clerical authorities (who may have wondered if he were still alive), and his writings had less religious referrals.Along with De Smet, Hoecken founded the St. Ignatius Mission for the Flathead Indians, and moved with this mission to its present location in St. Ignatius, Montana in 1854.