Final answer:
Madame Carambeau's son appears to be a character shaped by a difficult past, involving warfare and class struggles, and is likely accustomed to hardship.
Step-by-step explanation:
Understanding the character of Madame Carambeau's son requires piecing together hints and implications from different fragments of texts which suggest characteristics and backstory. The son of a 'poor planter' who has seen warfare and embodies a deferential demeanor towards the wealthy implies a life shaped by struggle and class awareness. In the presence of those of higher social status, the son may present a withdrawn demeanor, influenced by his father's experiences. Such details indicate that Madame Carambeau's son could be a figure accustomed to hardship, perhaps weighed by the legacy of his father's past.