Traszha Ilse Riess1 
She graduated with a BLS.1 She graduated with a MLS.1 She graduated with a Bachelor of Arts (B.A.)1 From 15 July 1949, her married name became Macdowall.
Children of Traszha Ilse Riess and Fergus Day Hort Macdowall, 27th of Garthland
- William Fergus Victor Macdowall, younger of Garthland2 b. 25 Jan 1950
- David Riess Macdowall, 12th of Castlesemple+2 b. 21 Feb 1953
- Traszha Roxanne Macdowall2 b. 27 Oct 1954
Constance Gwendolyn Morely1
From before 1986, her married name became McDiarmid.2 From 21 December 1986, her married name became Macdowall.
William Fergus Victor Macdowall, younger of Garthland1
He was educated at Merivale High School, Ottawa, Ontario, CanadaG.2 He graduated from Queen’s University, Kingston, Ontario, CanadaG, in 1973 with a Bachelor of Arts (B.A.)1 He was a Procurement Officer, DND at Ottawa, Ontario, CanadaG.1
Claude Gagnon1
She graduated with a Bachelor of Arts (B.A.)1 From 21 December 1981, her married name became Macdowall.
David Riess Macdowall, 12th of Castlesemple1
He was educated at Confederation High School, Ottawa, Ontario, CanadaG.1 He was educated at Algonquin College, Ontario, CanadaG.1 He was educated at Nepean University, Canada.2 He was a Seismic Surveyor.1
Children of David Riess Macdowall, 12th of Castlesemple and Sharon Hill
- John Alexander Dougal Macdowall2 b. 6 Jun 1983
- Garnett Lloyd Hill Macdowall2 b. 8 Jun 1985
- Elliott Riess Macdowall2 b. 16 Apr 1989
Sharon Hill1
From 23 December 1982, her married name became Macdowall.
Children of Sharon Hill and David Riess Macdowall, 12th of Castlesemple
- John Alexander Dougal Macdowall2 b. 6 Jun 1983
- Garnett Lloyd Hill Macdowall2 b. 8 Jun 1985
- Elliott Riess Macdowall2 b. 16 Apr 1989
John Alexander Dougal Macdowall1
Garnett Lloyd Hill Macdowall1
