« Reply #1 on: Saturday 27 May 17 10:26 BST (UK) »
Hi Karen
Suspect your best bet might be to obtain their death certs.which will hopefully have parents names recorded.
Doing a free search on Scotland's People for Elizabeth Smith,other surname McQueen there is a possible death in Dumfries in 1884 (age 58). Cannot thus far see an obvious death for John. (I have only located them in the 1881 census - have you found them in previous censuses as there might be clues there?).
William
Dent (Haltwhistle and Sacriston), Bell and Jetson (Haltwhistle), Postle, Ward, Longstaff, Purvis, Manners, Parnaby and Hardy (Co. Durham), Kennedy and McRobert (Banffshire), Reid(Bathgate), Watson (Wemyss), Graham (Libberton), Sandilands (Carmichael), Munro (Dingwall)