This article presents a selection (with annotations) of Maulana Ghulam Rasool Mehr's correspondence with Syed Sulaiman Nadvi, Syed Abu al-Hasan Ali Nadvi and Masood Alam Nadvi that took place while he was collecting material for Syed Ahmad Barelvi Shaheed's biography. These letters not only shed light on Mehr's quest for the facts but also on some important information about Syed Ahmad Shaheed's life.