Alan Redpath was born in Newcastle upon Tyne, the only son of James and Christina Redpath. He went to Durham School, and then studied to be chartered accountant in Newcastle, completing this in 1928. He then worked as the chartered accountant for ICI until 1935. In 1936, he joined the Young Life|National Young Life Campaign as an evangelist, where he served until he was called to be pastor of Duke Street Baptist Church in Richmond, London in May 1940. In 1953 he moved to the United States and became the pastor of the Moody Church in Chicago. In 1955, Redpath was elected President of Unevangelized Fields Mission in the United Kingdom. Redpath ministered at Moody Church until 1962. In 1961, Houghton College awarded Redpath an honorary Doctorate of Divinity degree.