Cloete is also noted for his belief in the legend of the Lost Nigger Gold Mine ; he offered Lock Campbell , a Texan man , expenses of $ 10,000 if he would undertake an expedition to find it . On 19 July 1899 , Campbell and four other men signed an agreement to search for it , and one of the men later claimed to have discovered it in the Ladrones Mountains in New Mexico , but this was never verified . He died in the Sinking of the RMS Lusitania on 7 May 1915 , but his body was never identified
Sinking of the RMS Lusitania
Sinking of the RMS Lusitania
William Broderick Cloete