 The Yorkshire Antiquarian Club (who excavated at Arras, excavated six barrows in 1849, and William Greenwell opened 14 over a two-day period in March 1864.The other major figure in the recording of the Danes Graves cemetery is John Robert Mortimer, who claims that his application in 1871 to excavate more extensively was blocked because of Greenwell's lax excavation technique.The landowner, William Henry Harrison-Broadley responded that ""The investigations have been conducted so recklessly, so carelessly, and even so indecently – the graves were not even filled up again – that I am determined not to again allow them to be disturbed"".