He was born on 22 July 1872 to Emil Edler von Graeve (1826–1904), lord of Gotteswalde and Neuhof. Otto von Graeve served in the Prussian army, achieving the rank of Major before he settled in the small town of
Gernrode in
Anhalt. In 1913, he published a manuscript on
dowsing, (
My dowsing activity: Observations in theory and practice along with an appendix acknowledgments, minutes of all excavations to December 31, 1912 and statistics). He visited the United States on 27 January 1914 aboard the
USS George Washington, passing through
New York City on his way to
Vancouver Island to divine for
radium. He also spent time dowsing in the Sinai Peninsula and in Palestine. The
Deutsche Levante-Zeitung reported in November 1915 that von Graeve had dowsed for water at the German temple colony, on the property of the Auguste Viktoria Foundation on the
Mount of Olives and on that of a Syrian orphanage. In 1918, von Graeve is said to have found a mineral spring on the Schwedderberg near
Gernrode, allegedly by using a divining rod, which was then used for the local outdoor pool. The town of Gernrode then had three bathing establishments, namely the
Osterteich, the
Schraderbad and the
Ottobad, the latter discovered by and named after von Graeve. It was reported that during geological explorations undertaken in
Thermalbad Wiesenbad between 1919 and 1921 von Graeve was present as a representative of the company Meyer und Co. and, in May 1920 he used his dowsing rod (through a bore hole made by the engineer Röttinger from Halle) to discover a spring that was , erupted initially on tapping and produced per minute. Because of his reported successes, in 1920 he was commissioned by the city of
Reutlingen to assist with drilling for a water source. After drilling in vain to a depth of 126 meters at the site von Graeve had indicated, he was expelled from the site. Von Graeve married Elsbeth Schrey on 1 April 1902 in
Danzig and they had seven children (four sons and three daughters). == Graeve's explanation of dowsing ==