Hi Bruce
What do you have if anything of the children of Ronald and Jessie?
Could she have remarried after Ronald's death in 1856?
Saw this IGI marriage: Jessie McLean and James Grainger m.30 Dec. 1857 in Old Machar, Aberdeen. However, in 1871 (struggling with the 1861 so far) this Jessie shows as born in Nairn. The family in Old Marchar:
James Grainger 39 ship wright b. Aberdeen
Jessie Grainger 41 b. Nairn
Robina Grainger 12
Robert Grainger 3
James Grainger 1
John Mclean 38, cousin b. Nairn
Monica

Added: Sorry Bruce, although similar names, not sure

Found now I think this Jessie Grainger in 1861:
Margaret McKamie 48
Jessy Grainger 29, lodger b. Croy, Invernesshire
Robina Grainger 2 lodger b. Old Marchar
Address: 11 Benaccord Lane, Aberdeen/Old Marchar