1704 - 1784 Author of "Thy blood, thy blood the deed hath wrought" Gersdorf, Abraham von, b. April 7, 1704, at Siegersdorf, near Bunzlau, Silesia. 1769 member of the Unity's Direction, d. Jan. 2, 1784, at Barby, near Magdeburg.
--John Julian, Dictionary of Hymnology (1907)
Abraham von Gersdorf