Hi Lesley
The Greig ancestry belongs to my wife rather than myself. As you probably know there are many family trees published on-line which are demonstrably wrong, so when I worked out my version it was using the OPR records, the Episcopalian records, gravestones, the 1696 poll tax, censuses and post- 1855 certificates.
James Greig b.bef 1687 d. bet 1724-5 Mosside Cairnbulg, Rathen. Spouse unknown.
John Greig b. 1703 Rathen, sponsor at the the baptism of his sister Margaret at Mosside Cairnbulg, his father being recently deceased. Married Ann Milne 14 Nov 1727 (Episcopal Lonmay) and died 6 Jan 1774 (Gravestone at Rathen).
Alexander Greig bpt. 19th (Rathen) & 22nd (Episc) July 1739 b.Mosside Cairnbulg became the British Consul in Bergen. Married Margarethe Elisabeth Heitman.
My wife' line starts: James Greig b.bef 1687, as above
James Greig b.ca.1708 Rathen, d. 30 Aug 1771 Hillhead of Cairnbulg, married Marjery Carle d.29 Mar 1788 (Gravestone at Rathen).
Other known children of the first James Greig, all born at Mosside Cairnbulg, Rathen are:
Alexander 13 Dec 1714, Andrew 4 May 1717, Christian 24 May 1722, Margaret 27 Feb 1725. Andrew Greig in Cairnbulg appears as a baptismal witness for the last two.