Who is the calligrapher of Nanshan Hermit?

It may be Li, a famous Guanzhong during the reign of Kangxi.

According to legend, Jiang Ziya, the founding father of the Western Zhou Dynasty, lived in seclusion in Panxi Valley before entering the DPRK, and then came out of the mountain at the age of 80, ending his seclusion career, assisting the king of Wu in cutting Zhou, making contributions and becoming a celebrity; At the end of Qin Dynasty and the beginning of Han Dynasty, there were Dongyuan Gong, Qili Chicken and Four Gentlemen, collectively called "Four Hao". They lived in seclusion for goodness first, and then in seclusion in the south; "three outstanding heroes of early han dynasty" Zhang Lianggong retired and "crossed the valley" in Bai Zi, the southern foot of Zhong Nanshan, and was able to die well; Sun Simiao, Zhong Liquan, Lv Dongbin, Liu Haichan and Wang Zhongyang, the founder of Quanzhen Road, all lived in seclusion in Zhong Nanshan. Li, a famous Guanzhong scholar in Kangxi period, hid in Taibai Mountain, the main peak of central and southern China, in order to avoid the call of the Qing court. Because of the lack of paper in the mountains, he wrote poems with mistletoe leaves and even collected them into a collection of mistletoe leaves. During the Republic of China, Mr. Gao Henian, a great Buddhist, also practiced in Jiawutai and Nanwutai in Zhong Nanshan in his later years, and has lived in seclusion ever since.