When Samuel Hancock came to the Stillaguamish people in 1850 they had had some contact with Christianity because the people would make the motions of a cross. The people had never seen a revolver. The Reverend Eugene Casimir Chirouse established a mission in the lower Snohomish River country in 1857. He had considerable influence on these people. The women wore cedar-bark girdles while the men and children wore nothing except during winter. They hunted goats in the Cascade Mountains and traded with other natives and whites. They ate salmon and other seafood, roots and berries. After the whites came to their country they began growing potatoes in small patches on bottomlands. Eventually they worked for whites doing tasks like clearing land and harvesting crops.
The Stillaguamish had no trust land. On October 27, 1976 they achieved status to be federally recognized. Then they filed a claim with the Indian Claims Commission for payment of lands ceded to the United States under the Point Elliott Treaty of 1855. On January 8, 1970 the commission entered a final judgment in the amount of $64,460 for the tribe's 58,600 acres.