Harry Foster (N/A – December 1985) was a British preacher and missionary whose ministry spanned over four decades, focusing on sharing the gospel in South America and edifying believers through preaching and writing. Born in London, England, specific details about his early life, including his parents and upbringing, are not widely documented, though his involvement with the Plymouth Brethren suggests a strong evangelical upbringing. His education appears to have been practical, centered on biblical study and missionary training rather than formal theological institutions, aligning with Brethren traditions. Foster’s preaching career began with local ministry in England before he embarked on missionary work in Argentina and Brazil around the mid-20th century, serving with his wife, Winifred, under Echoes of Service. His sermons, preserved on SermonIndex.net—such as those emphasizing faith and spiritual growth—reflect his experiences in South America, delivered with a focus on Christ’s sufficiency and the believer’s walk. Returning to England later in life, he edited Toward The Mark magazine and authored books like The Normal Christian Life Study Guide, On Wings of Faith, and Daily Thoughts on Bible Characters, amplifying his preaching through print with CLC Publications.