Complex sentence: His younger brother George, an aspiring land surveyor, attended the "Public Vendue" (auction) and copied the town map, "A Plan of Alexandria, Now Belhaven", and listed the selling prices of individual lots for his brother.
Split into simpler sentences: His younger brother George, an aspiring land surveyor, attended the "Public Vendue" (auction). He copied the town map, "A Plan of Alexandria, Now Belhaven", and listed the selling prices of the individual lots for his brother.