Our article is based on the farewell letters written by 72 residents of the province of Quebec, aged between 20 and 30 years old, who took their own lives during the period 1940-1970. The 138 letters studied, which come from the Archives of the Coroner of the judicial district of the City of Montreal, are treated from a perspective which we qualify as communicational. Having identified five ideal-types according to the meaning of the message, either introspective or dyadic, in relation to the suicidal act, we underscore the abundance and the multidirectional quality of the themes that the individuals used to shape their posthumous self. Our results also show that gender plays an undeniable role in the communicated message as well as in the manner in which it is communicated.