Who was Shri Dasganu Maharaj and what were his literary contributions regarding Sai Baba?

Chapter 0 identifies Shri Dasganu Maharaj as a devotee who was worthy of Shri Sai Baba's grace and is counted among the foremost modern poets. His literary contributions concerning Baba consist of two biographies. The first is within his 'Bhaktalilamrut' (Chapters 31, 32, 33), comprising 12 pages and 509 verses. The second is in his 'Bhaktisaramrut' (Chapters 52, 53), which has 12 pages and 497 verses. These works are praised as being excellent and graceful, though they are considered very short.