This paper seeks to determine the system of grammatical relations for verbal person marking in Chitimacha, a once-extinct isolate from Louisiana now undergoing revitalization efforts. Though the language was documented intermittently from 1802 onwards, the most extensive and reliable documentation is from Morris Swadesh's work with the last two native speakers in the 1930s. These efforts resulted in a grammar, 3,500-word dictionary, and collection of 110 texts, all unpublished and as yet untranscribed. This study examines a selection of of those texts to determine whether Chitimacha person marking follows an agent-patient system, an active-stative system, or something else entirely.