Wilfrido Sierra Castro (1909-1969) was a humble peasant from the tiny rural hamlet of Rio Verde, Esmeraldas, Ecuador, who might have been just another obscure evangelical believer hidden from public view, were it not for the fact that for a few years (1966-1968) he was the neighbor of the caustic, brilliant, acerbically humorous, bitterly agnostic Peace Corps and travel writer, Moritz Thomsen (1915-1991), who became an unexpected secular witness to the saintly life of Wilfrido Sierra. Thomsen referenced Wilfrido Sierra in the first of his five critically acclaimed books, “Living Poor” (1969), and then described him again in greater detail in a little-known speech (March 1969) to a Peace Corps audience in Washington, DC, a piece that has never been published. The sole known surviving manuscript copy of that address was passed on to my family, who knew both Wilfrido Sierra and Moritz Thomsen well. My father, Paul Erdel (1927- ), a career missionary to Esmeraldas, Ecuador, drafted his own account of his encounters with Wilfrido Sierra, in part to share with Thomsen. The latter memoir from 1972, also unpublished to date, constitutes a second panegyric to the holy life and spiritual impact of Wilfrido Sierra. This paper will reflect on the difficulty of documenting the stories of virtually anonymous believers and on the providential circumstances that preserved at least two narratives about Wilfrido Sierra. It will also review what made the life and Christian testimony of Wilfrido Sierra so remarkable and discuss the differences between the two miniature biographies we have of his life. Moritz Thomsen experienced a little-known but joyous deathbed conversion in Guayaquil, Ecuador, in 1991, presumably haunted to the end by the extraordinary witness of his evangelical neighbor in Rio Verde. The paper will include full copies of both extended panegyrics as appendices, as well as quoting selectively from them in the body of the paper.