Sir Alexander de Irwyn, 4th of Drum1
He was given the name of Robert de Irwyne at birth.1 On 16 October 1411 he received as dowry lands of Strachan in Kincardine by charter.1 He was Commissioner to negotiate the ransom of King James I with the English in 1423.1 He was appointed Knight in 1424.1 He held the office of Captain and Governor of the Burgh of Aberdeen in 1440.1
Children of Sir Alexander de Irwyn, 4th of Drum and Elizabeth Keith
Elizabeth Keith1
Children of Elizabeth Keith and Sir Alexander de Irwyn, 4th of Drum
Alexander Irvine of Drum, younger1 
He held lands of Lonmay, Savoch, Corstellie.1 In 1446 he had charter of lands of Learney.1
Children of Alexander Irvine of Drum, younger and unknown daughter Abernethy
- Alexander Irvine, 5th of Drum+2 d. Dec 1493
- Elizabeth Irvine+2
Robert Irvine1
He was ancester of teh Irvines of Lenturk and the Irvines in germany.1 He lived at Beltie, Scotland.1 He fought in the Battle of Brechin in 1452, the Royalist defeat of rebel earls.1
John Cummyn of Culter1
- [S37] BP2003 volume 2, page 2062. See link for full details for this source. Hereinafter cited as. [S37]
unknown daughter Abernethy1
Her married name became Irvine.
Children of unknown daughter Abernethy and Alexander Irvine of Drum, younger
- Alexander Irvine, 5th of Drum+2 d. Dec 1493
- Elizabeth Irvine+2
Anne Williams
From 17 October 1785, her married name became Brown.
Children of Anne Williams and James Brown
- James Brown+ b. 25 Sep 1786
- William Williams Brown+ b. 10 Feb 1788
- [S4567] Bill Norton, “re: Pitman Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 6 April 2010 and 19 April 2011. Hereinafter cited as “re: Pitman Family.”
Elizabeth Irvine1
Her married name became Allardyce.
Child of Elizabeth Irvine and Thomas Allardyce of Allardyce
Thomas Allardyce of Allardyce1,2 
Child of Thomas Allardyce of Allardyce and Elizabeth Irvine
Sarah (?)1
Child of Sarah (?) and Captain Frederick Bagley
- Elizabeth Mary Bagley1 b. 22 Dec 1825, d. 5 Nov 1907
- [S4567] Bill Norton, “re: Pitman Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 6 April 2010 and 19 April 2011. Hereinafter cited as “re: Pitman Family.”