Dr. Ann Huppert and Dr. Pamela O. Long are developing a history of the Church of the Gesù, the first Jesuit church built in Rome. I implemented data organization, performed data entry, and created a Table of Contents for the 16th-century account book. The TOC tracks peoples involved, monetary transactions, materials, and other details relevant to construction that occurred between 1568 and 1581, and establishes a relationship between folio photographs and corresponding pages of the transcription. My work complements the researchers’ architectural and historical expertise, giving them a clearer picture of the construction project and facilitating the capture of data.