1. Sheldon G. Jackson (1929-2009)
This Sheldon G. Jackson was an American Christian theologian and author. He wrote extensively on biblical studies and church history, with a focus on the history of the church in America and the doctrine of the Trinity. Some of his most notable works include:
* The Quest for the Historical Jesus: A Critical Study of the Quest for the Historical Jesus (1972)
* The Trinity: A Theological and Historical Perspective (1982)
* Church History: An Introduction (1988)
* The Church and the Homosexual (1989)
2. Sheldon Jackson (1834-1909)
This Sheldon Jackson was an American Presbyterian missionary, educator, and author. He is primarily known for his work in establishing schools and churches in Alaska. His writings include:
* Alaska and its Missions (1880)
* The Story of the Northern Lights (1891)
* A Century of Presbyterianism in Alaska (1902)
To clarify which Sheldon G. Jackson you are referring to, please provide more context or specific details about the work you are interested in.