Paint Creek, Tex. — In the early years of his political career, Rick Perry began hosting fellow lawmakers, friends and supporters at his family’s secluded West Texas hunting camp, a place known by the name painted in block letters across a large, flat rock standing upright at its gated entrance. “Niggerhead,” it read.The name of this particular parcel did not change for years after it became associated with Rick Perry, first as a private citizen, then as a state official and finally as Texas governor.