How is the tombstone of Minister Mao Gongyi written?

1986 12.28, Shaoshan Administration accidentally dug up the Mao Tombstone buried underground for 54 years when it was building the Huxieping Highway. I saw the following words engraved on the tombstone:

In the first year of the Republic of China, Ren Keyue Qi.

On the Tomb of Brother Mao Gongyi

Inner Mountain and Outer House Mountain

Male Yichang Sun Zedong, Ming Helin

Mao Zedong's father, Mao Shunsheng, is from Yichang in his autograph. Mao Shunsheng, whose real name is Yichang, is called Shunsheng and Liangbi. Ming Ze means Zemin, and Lin Ze means Zeqin, which are the original names of Chairman Mao's two younger brothers.