Hi Monica, thanks very much for the links, they've helped enormously.
I found Two Daniel McCready's, born within two years of each other in SP, both listed as born in Gateside, Neilston, So I just need to figure out if the Daniel in My family is the one who died in the War. He is listed in the same regiment as Dugald and Peter, But it appears he signed up in Dingwall, Ross-Shire?