On the 1st July 1917 the 1/5th Battalion attack the German forward positions at N13 (white circles). See report here Pages from WO-95-2693-2
Map showing the area of attack by the 1/5th Battalion (white circles) and the locations of the four bodies identified after the War
What remains a mystery is why the bodies of Alfred Burnett, Frank Praill and Joseph Jeffcoate were found so far from the area of attack by the 1/5th Battalion.
The graves of only four men are now known and these were recovered during the battlefield clearances of the 1920s
Joseph was originally posted missing after the 1st July 1917, but his widow was not awarded a pension until February 1918.
203475 L/Cpl Alfred William Burnett aged 29
Frank was originally posted missing after the 1st July 1917 but his body was later exhumed in 1919 and identified by his spoon. He was now reburied in Loos British Cemetery.
For more information on Frank see here