《汉书·传·公孙刘田王杨蔡陈郑传》
由郡县的小吏积累功劳，逐渐升为被阳县令。
以郡县吏积功，稍迁为被阳令。
Having gradually accumulated merits as a minor official of a prefecture or county, he ascended to the position of county magistrate of Dangyang County.