Earlier Longmores
The family was in Keith by 1675 and likely earlier
William Longmore 1751-1824 m. Margaret Rae 17xx -1815
They had 2 sons: Adam Longmore, 1778-1849 , who married Ann Forsyth and worked in the Exchequer, Edinburgh &
William Longmore 1781
Details of their lives are in the 1882 Obituary of their grandson, William Longmore 1806-1882, who they are said to have adopted
The parents of William 1751 were:
Adam Longmore, farmer of Brae of Montgren, 4/3/1728 - 22/7/1770 m. 8/6/1749 in Deskford Margaret Ogilvie 17xx-1781

The parents of Adam Longmore 1728 were , perhaps, William Longmore 1703 & Isobel Taylor 1704, who married 10/8/1725 in Keith
The parents of William Longmore 1703 were, perhaps!, James Longmoor 1655 & Jannet Gib who married 1678 in Keith
I have not researched the latter 2 generations !!