Gregor MacGregor1 
Child of Gregor MacGregor and Marjory Grant
- James MacGregor+2 d. 1761
Robert Grant of Easter Elchies1
Child of Robert Grant of Easter Elchies
Marjory Grant1
From circa 1681, her married name became MacGregor.
Child of Marjory Grant and Gregor MacGregor
- James MacGregor+2 d. 1761
James MacGregor1 
At Milton, by Duthill, Strathspey, Scotland, (an unknown value.)1
Child of James MacGregor and unknown daughter Grant
- Colquhoun McGrigor+2 b. 1740, d. 1798
unknown Grant of Abernethy1
Child of unknown Grant of Abernethy
unknown daughter Grant1
Her married name became MacGregor.
Child of unknown daughter Grant and James MacGregor
- Colquhoun McGrigor+2 b. 1740, d. 1798
Colquhoun McGrigor1 
He was a merchant.1
Child of Colquhoun McGrigor and Ann Grant
- Sir James McGrigor, 1st Bt.+2 b. 9 Apr 1771, d. 2 Apr 1858
Ann Grant1
Her married name became McGrigor.
Child of Ann Grant and Colquhoun McGrigor
- Sir James McGrigor, 1st Bt.+2 b. 9 Apr 1771, d. 2 Apr 1858
Sir James McGrigor, 1st Bt.1 
He graduated from Edinburgh University, Edinburgh, Midlothian, Scotland, with a Master of Arts (M.A.)1 He graduated from Edinburgh University, Edinburgh, Midlothian, Scotland, with a Doctor of Medicine (M.D.)1 He gained the rank of in 1793 in the Army medical department.1 He gained the rank of Surgeon in the 88th Connaught Rangers, served in Holland, Flanders, West Indies and India.1 He was appointed Fellow, Royal Society (F.R.S.)1 He gained the rank of Superintending Surgeon in 1801 in the Egypt.1 He was Inspector-General of Hospitals in 1809.1 He was Chief of Medical Staff, Wellington’s Army in the Peninsula in 1811.1 He was appointed Knight in 1814.1 He was Director-General of the Army Medical Department between 1815 and 1851.1 He was appointed Fellow, Royal College of Physicians, London (F.R.C.P.)1 He was created 1st Baronet McGrigor, of Campden Hill, co. Middlesex [U.K.] on 30 September 1831.1 He was appointed Knight Commander, Order of the Bath (K.C.B.) in 1851.1
Children of Sir James McGrigor, 1st Bt. and Mary Grant
- Jane Grant McGrigor2 d. 28 Jan 1902
- Sir Charles Rhoderic McGrigor, 2nd Bt.+2 b. 2 May 1811, d. 13 Jan 1890
- Walter James McGrigor+2 b. 18 Mar 1817, d. 7 Jun 1891