Based on the provided text, who were the main devotees associated with the Ram Navami fair and Maharaj's service?

The source text in Chapter 0 introduces several key devotees. The two most directly associated with the Ram Navami fair are Nanasaheb Nimonkar and Damu Shet Kasar, who provided the two ceremonial flags. Nanasaheb was a magistrate who became a constant server in his later years. Damu Shet was a merchant who started his tradition of bringing a flag out of gratitude for the birth of a son. The text also mentions another selfless devotee drawn to Maharaj, Narayan Govind alias Nanasaheb Chandorkar from Kalyan, who was a chitnis to the Ahmednagar collector at the time.