Mussoorie was founded by Lt. Frederick Young of East India Company. Lt. Young came to these hills for the purpose of shooting game.

He was so enamoured by the beauty that he decided to build a hunting lodge (shooting box) on the Camel's Back Road with FJ Shore, Jt. Magistrate of Doon in 1823. He raised the first Gurkha Regiment and planted the first potatoes in the valley. His tenure in Mussoorie ended in 1844 and he further served in Dimapore and Darjeeling and retired as a General and went back to Ireland. There are no memorials to commemorate Young in Mussoorie. However, there is a Young Road in Dehradoon on which ONGC's Tel Bhawan stands. 

Source: Wikipedia