Chlordecone is an organochlorine pesticide that was used between 1973 and 1993 in the French West Indies to control the banana weevil. Persistent in the environment, it is a possible carcinogen and a potential endocrine disruptor in humans. As part of the Chlordecone Plan implemented in the French West Indies, a study was conducted to assess the feasibility of identifying banana farm workers potentially exposed to chlordecone and reconstructing their exposure to pesticides for epidemiological surveillance purposes. The study took place in Martinique and then in Guadeloupe between March 2010 and November 2011. Organizations likely to possess records of banana farms or agricultural workers employed there between 1973 and 1993 and/or information on agricultural practices regarding the use of pesticides were contacted to assess the available information and the procedures for making it available. Of the 70 organizations contacted, 11 in Martinique and 18 in Guadeloupe possessed lists, mainly in paper format, of either agricultural workers or banana farms. Analysis of these lists shows that it is possible to reconstruct a cohort of farm managers and agricultural workers. Regarding the historical reconstruction of these workers’ exposure, several organizations contacted possessed data that could be used to reconstruct the practices of using these products in the cultivation of export bananas and sugarcane, a crop primarily associated with banana cultivation. (R.A.)