Deaths at that time span can be veiwed online at Scotlandspeople .Will have wife/husbands name ,and if luckly the parents of the desceased.
Edit - I would look for the wifes death first as you have a maiden name that can be used.It will let you know if she was widowed at her death.
Edit-I noctice from your tree we are talking Ardrossan.For the local paper intimations ,free site- http://www.ayrshire-roots.co.uk/
Also is a forum site for the towns of Ardrossan,Saltcoats,and Stevenston.-http://www.threetowners.com/forum/
Free to search and you may find someone who is connected .