[3] After graduation, he was invited by the authorities of the Church of God (Seventh Day) to change his address to Stanberry, Missouri, where the offices of this organization would be, this action for Andrew N. Dugger to serve as editor of The Bible Advocate magazine, a position he held for 18 years from 1914 (the year World War I also began), as well as the Presidency of the General Conference of the Church of God (Seventh Day) in the United States in 1921.

[1] In 1914, Dugger permanently closed the open forum of The Bible Advocate magazine, ending a long tradition within the Church of God (Seventh Day) that allowed members to exchange opinions and make doctrinal proposals, the reason given by Andrew N. Dugger was that "the diversity of ideas endangered doctrinal uniformity.

"[4] In 1917, the General Conference of the Church of God in Stanberry, Missouri received the minimum amount of $1,000, so Andrew N. Dugger felt that the organization would have financial problems.

According to Robert Coulter (minister) [es], Christology would not be discussed again until 1980, when the Church of God (Seventh Day) integrated the divinity of Jesus Christ into their beliefs.

[6] Coulter also mentions that during his presidency, Dugger used the theological diversity within the Church of God as an excuse to divide the organization and later establish the Salem Conference, a temporary division that occurred in 1933.

[6] During his presidency of the American church, Andrew N. Dugger ordered the installation of the organization's first printing press in Mexico, due to requests for literature that had been made from different Mexican cities.

In that year, Andrew N. Dugger reports the following regarding Milton Grotz: Stanberry has been stirred by the power of God during the past week as never before in her history.... we are living in the days of the Latter Rain....

[8] In the early 1930s, the controversial preacher Herbert W. Armstrong, creator of British Israelism and promoter of the celebration of the Leviticus 23 festivals in Christianity, was a member of the Church of God (Seventh Day), during the temporary split in 1933 that would form the Salem Conference of the Church of God (Seventh Day), Armstrong sided with the Salem group and Andrew N.

[2] Regarding the formulation of the doctrine of British Israelism, Herbert Armstrong mentions in his autobiography a letter received from Andrew N. Dugger responding to a request for publication: "Dear Brother Armstrong: I... have just finished the manuscript on the Third Angel's Message and British Israel... You have put much work on this and I am impressed to write you now while the matter is fresh on my mind of how it has interested me.

"[12]During the 1930s, after the creation of the Conference in Salem, one of the missionaries in Mexico closest to Andrew N. Dugger was Ezequías Campos, who in 1937 introduced the celebration of the Feasts of Leviticus 23 to the Church of God (Seventh Day) in Mexico and later became the founder of the Church of God (Israelite) when the Mexican Conference abolished the celebration of the holidays.

[13] Due to Dugger's earlier contact with the Mexican Conference of the Church of God (Seventh Day), he tried to bring them toward the recognition of the dissident organization that opposed reunification (Salem) in the United States, however, the various trips to Mexico were counteracted by Burt F. Marrs, who made his own trips to visit the Mexican Conference and replaced the literature of Dugger.

[13] In 1952, after a long trip to Nigeria while visiting groups of the Church of God in that place, he decided to move to Jerusalem with his wife.