Hello Jill. Thanks for your welcome and for getting in touch.
So very many Sherets and Duthies, and such a small selection of names they were prepared to call their children!
The Margaret Duthie in my line was born 10 Nov 1848 at South Balmakelly, Marykirk, and died 7 May 1925 at Nether Baulk, Fetteresso. Her husband was John Sheret, who was born 27 Jul 1843 in Fordoun (as per 259/40 328 of Fordoun registers), and died 26 Sep 1901 at Nether Baulk, Fetteresso. They were married 2 Dec 1868 at the Mill of Luther, Marykirk (as per 265/13 of Marykirk Registers).
One of their children, Agnes Craig Sheret is my maternal grandmother and was born 20 Apr 1887, at Balmaleedie Farm House in Marykirk, and died 23 Sept 1942 at 30 Damacre Road, Brechin, and was married to William Martin Glen.
I do hope that these details are helpful!
Gordon