Mckay/cormack

[Isabel Griggs]

Looking for any information on:
James Mckay married Rachel Cormack
Children:
William Mckay
Steel Mckay
John Mckay b: 1850 Latheron, Caithness d: 01 Oct 1931 NZ married Margaret Hendry b: 1853 Latheron Caithness d: 23 Aug 1943 Mount Cook NZ.

Any information appreciated
Isabel
Australia