Louise Allison Cort and H. Leedom Lefferts compiled an electronic archive that contains documentation supporting the research collection of items assembled between 1986 and 2018 by Lefferts and Cort. Their research focused on increasing an understanding of present-day earthenware and stoneware ceramic production in Mainland Southeast Asia. The archive consists of written, visual, and material documentation of a structured series of field trips to the region, covering 207 sites. It also includes the results of research conducted during trips taken to the region for other purposes, documentary research in libraries and online, and contacts with colleagues. The electronic archive is supported by the physical copies of the same notebooks, slides, videotapes, and files of paper documents. For more information about the archival objects that support the online archive, please refer to the finding aid on the Archives at Yale website.