Were there other biographies written about Shri Sai Baba besides the Shri Sai Satcharita?

Yes, the preface acknowledges other biographies of Sai Baba. Specifically, Chapter 0 mentions that Shri Dasganu Maharaj, a prominent modern poet who had received Shri Sai Baba's grace, authored two biographies. The first is found in chapters 31, 32, and 33 of his work 'Bhaktalilamrut', and the second is in chapters 52 and 53 of 'Bhaktisaramrut'. While these biographies are described as excellent, heart-touching, and suitable for study, their main distinction from the 'Shri Sai Satcharita' is their brevity. The stories within them are largely the same as those in Annasaheb Dabholkar's more detailed work.