《明史·列传·卷十八》
丁德兴的儿子叫丁忠，是龙江卫指挥使。皇上给予世袭的权利。
子忠，龙江卫指挥使，予世袭。
Ding Dexing's son was Ding Zhong, who was the commander of the Longjiang Guard. The emperor granted him the right to inherit his father's position.