I was born a slave; but I never knew it till six years of happy childhood had passed away. My father was a carpenter, and considered so intelligent and skilful in his trade, that, when buildings out of the common line were to be erected, he was sent for from long distances, to be head workman. On condition of paying his mistress two hundred dollars a year, and supporting himself, he was allowed to work at his trade, and manage his own affairs. His...