""Christian Thoroughness: A Memorial Sketch Of Thomas Averell Shillington, Of Portadown"" is a book written by John Dwyer in 1875. The book is a tribute to Thomas Averell Shillington, a devout Christian from Portadown, Ireland. The author provides a detailed account of Shillington's life, his religious beliefs, and his contributions to the Christian community. The book highlights Shillington's commitment to living a life of Christian thoroughness,...