This article is about J Gresham Machen and the beginnings of the Orthodox Presbyterian church.

This article is about J. Gresham Machen and his struggle with the Presbyterian church concerning foreign missions in the 1920s.

This article is about J. Gresham Machen's trial under the Northern Presbyterian Church and the founding of the Orthodox Presbyterian Church.

This article is about J. Gresham Machen's view on theological training and theological seminary.

This article is about the life and legacy of J. Gresham Machen, one of the 20th centuries most capable defenders of Protestantism against the growing tide of liberalism.