sentences:  He was also a special envoy to the Samoan International Conference in 1889.Kasson was a special commissioner plenipotentiary from the United States to negotiate reciprocity treaties in 1897 and was a member of the United States and British Joint High Commission to adjust differences with Canada in 1898.Kasson died in Washington, D.C. on May 18, 1910 and was interred in Woodland Cemetery in Des Moines.