After the family moved to Portland, Oregon, the young boy was influenced by John G. Lake and converted to Pentecostalism by Charles Fox Parham.

At the age of eighteen he began his ministry as a traveling evangelist, conducting meetings in Assembly of God, British Israelite churches and other Pentecostal groups.

They were followers of John Alexander Dowie, a famous healing evangelist of the late 1800s who claimed to be the return of Elijah the Prophet and founded Zion as a religious commune.

When the city went bankrupt, after the fall of Dowie, the Lindsay family moved to a Christian community led by Pisgah Finis E. Yoakum in California, and then to Portland, Oregon.

He then developed a relationship with John G. Lake, who had also been a follower of Dowie, and who was leading the Divine Healing Mission in Spokane, Washington and Portland, Oregon.

[1] Lindsay was involved with the British Israelite movement and was the organizer of the 1940 Anglo Saxon World Federation Convention held during March in Vancouver, Canada.

Speakers at the event included Canadian minister Clem Davies, a KKK recruiter and promoter of an early version of Christian Identity Theology.