CWGC entry has now been updated to show that William is buried in Weaste.
WILLIAM NELSON WADDICOR Rank:Company Serjeant Major Service No:10579 Date of Death:22/02/1917 Age:30 Regiment/Service:Manchester Regiment 18th Bn. Grave Reference: 36. Diss. 1204. Cemetery:SALFORD (WEASTE) CEMETERY Additional Information:Husband of Maud Mary Waddicor, of Broughton.
Thanks to all involved especially mack for the initial heads up.