One was an agent of the Colonization Society.

From 1822 till 1872 he acted as the agent and secretary of the American Colonization Society.

He was one of the original subscribers to the American Colonization Society.

Sunderland served on the executive committee of the American Colonization Society.

This was made possible with the support of the American Colonization Society.

This is consistent with the thinking of the American Colonization Society.

The American Colonization Society (founded in 1817) was one such group.

In 1816, he helped create the American Colonization Society and held the position as its first president for the remainder of his life.

He had begun his career as the colonial secretary for the American Colonization Society between 1830 and 1834.

In 1877, he became an agent of the American Colonization Society.