Duncan d 17 Sep 1910 his usual address was Dennistoun. He was married to Cecelia Robson. His brother Andrew was the informant.
The informant on Andrew's death registration is a noted as also being a MacDermind but only as an intimate friend. His wife is listed, not marked deceased so possibly she was still living.
No sign of Malcolm, perhaps he didn't survive the war.
If you want these registrations, send me a PM with your email.
Don