Joséph Tréguier is born at Lorient
Between the thirteen voyages on which his name appears, there are small variations in his name, age and physical description.
The surname is variously spelled Tréguier, Treguier (without the accent) or Treguyer. In all but one case, the given name is Joseph. In the remaining case, he is listed as Jean-Marie Tréguier, son of Joséph Tréguier. The latter was the first voyage chronologically; the boy may have given a middle name to differentiate from his father. In nearly all cases where a parent is listed, it is a father also named Joséph. In two cases the father's name is different, Jean in one case and René in another.
Tréguier's age is also listed somewhat inconsistently. But, wherever an age is listed, it lines up to within a few years of what Tréguier's age must have been. In all cases, the Joséph Tréguier listed was born in Lorient between 1739 and 1743. The furthest stretch is the first case. He is listed as ten years old, but if it was the same person, it is more likely that he was about seven years old. Presumably, a young child overstating his age to win a position or a higher wage was not an uncommon occurrence. In three cases, no age is listed. In the first two, however, he is still listed as a cabin boy (mousse) earning 6 livres, which is in keeping with the age he would have been on the respective voyages. The third ageless instance is certainly the same person, as it notes the previous ship he had been on.
He is most commonly described as having a small build and brown or chestnut hair, though in two cases he is described as small with black hair.
In sum, there is no definitive reason to believe any of the Joséph Tréguiers is a separate individual. For example, none are listed in two places at the same time. Therefore, it is quite possible (though not certain) that these are all the same person.
The table below presents the information available on the Joséph Tréguiers of the 13 voyages. Those in bold seem likely to be the same individual. Those not in bold are more questionable, but still quite possibly the same person.
