Lizzie this is a little late but there are some strange parallels between your family history and mine. My ancestor William Ranken (g.g.g.g grandfather) was born in Edinburgh to an exciseman who was also a nurseryman. John Ranken's will details the hundreds of trees in his nursery. His brother James and father William were also both gardeners. Family tradition states that they were involved with the gardens at Saughtonhall, but the only reference I have found is to William Ranken being gardener at Lord Somerville's house at Gilmerton (Liberton Parish) also known as 'The Drum.'
There is a circumstantial link with the Baird's of Saughtonhall in that my ancestor enlisted in the regiment where the notorious Captain Sir James Baird of Saughtonhall commanded a company, the 71st or 'Fraser's Highlanders', raised for the American War in 1776. My ancestor had already formed a connection with another officer of the 71st, Colonel Sir William Erskine, a relation of the Bairds, having run away as a rebellious 17-year old to join the regiment Erskine commanded previously, the 15th Light Dragoons.
Under Erskine's patronage my gggg grandfather rose to be a successful staff officer in America. At the end of the war he retired to Fife as tenant of a farm let him by William Erskine where he lived quietly until 1793 when he joined the Fife-shire Fencible Cavalry (commanded by another Erskine). After serving on the Regimental Staff, he took over as a troop commander until he fell ill and died of causes unknown in 1799.
That is how a gardener's son from Edinburgh ends up in the Fifeshire Fencibles!
if you have any details about Saughtonhall in the period, I should be delighted to read them.
For a brief overview on the Fife Fencibles, see here:
http://thaneofife.org.uk/fencible-cav.htmlFencibles weren't militia but regular regiments raised specifically for domestic defence and serving only in the British Isles. Patriotic worthies were authorised to recruit regiments locally in Scotland, as indeed were many regular Line regiments raised in Scotland in the second half of the 18th. This gave them a distinctly local character resembling that of the militia but, despite starting out essentially as groups of neighbours in uniform, Fencible Cavalry regiments, unlike the Yeomanry, were not merely glorified Home Guard units but operated under standard rules of military discipline. They could be moved to anywhere in the British Isles the government required.