《宋史·本纪·卷四十三》
为国捐躯者史季俭、杨勘子各赐转二官，官其一子。 
死事史季俭、杨戡子各赐官两转，官一子。 
Shi Jijian and Yang Kanzhi died serving their country, and each was posthumously promoted two levels and one of their sons was given an official post.