This is a quote from page 525 from Volume I of the Chiefs of Grants by Sir William Fraser, Edinburgh, 1883 (Grants of Carron).
Captain James Grant of Carron, succeeded his father in Carron. He served a considerable time in the army as ensign and lieutenant, and was present at the battle of Fortenoy in 1745, when only eighteen years of age. He was baron of Mulderie in Moray in 1767, and in 1774 a commissioner of supply for Elgin and Forres. He inherited the estate of his uncle, Sir Patrick Grant of Antigua, who died in 1770; but in 1783 his failure is referred to in the testament of Lewis Grant of Wester Elchies, to whom he was a debtor. He sold Carron in 1786 or 1787 to Robert Grant of Wester Elchies. James Grant married "Mrs Grant of Carron," known as the authoress of "Roy's Wife of Aldivalloch." She survived him and married, secondly, Dr. Murray, a physician in Bath. He died in the Abby of Holyrood House on 14th March 1790, and at the giving up of his testament his estate was valued at 5 pounds, 4 shillings. He had five sons."
One of these sons was Effingham Grant about which is said:
"Effingham Grant, who resided with his father in the Abby of Holyrood Housein 1790, and gave up his testament."
I have been able to trace my ancestors to a Effingham Howard Grant who married Jane Harrison at St. Marylebone, Saint Mary-St. Marylebone Road in London in 1809. All I know of Effingham Howard Grant is that he was born in Scotland.
Could they be one and the same? I know that my GGGGrandfather was minor nobility..."Esquire" listed on the wedding certificate. Can anyone trace what happened to James's son Effingham? The timing is certainly appropriate.