Mina Irene Flavelle1 
From 28 October 1909, her married name became Barrett.1
- [S34] BP1970 page 1022. See link for full details for this source. Hereinafter cited as. [S34]
William Walters Barrett1
- [S34] BP1970 page 1022. See link for full details for this source. Hereinafter cited as. [S34]
Clara Ellsworth Flavelle1 
From 21 September 1916, her married name became McEachren.1 She was appointed Officer, Order of the British Empire (O.B.E.) in 1946.1
- [S34] BP1970 page 1022. See link for full details for this source. Hereinafter cited as. [S34]
Captain Frank McEachren1
- [S34] BP1970 page 1022. See link for full details for this source. Hereinafter cited as. [S34]
Muriel I. McEachren1
From 23 January 1917, her married name became Flavelle.1
Children of Muriel I. McEachren and Sir Joseph Ellsworth Flavelle, 2nd Bt.
- Clare Elizabeth Flavelle1 b. 6 Sep 1918
- Sir Joseph David Ellsworth Flavelle, 3rd Bt.+1 b. 9 Nov 1921, d. 27 Feb 1985
- William Ellsworth Flavelle1 b. 26 Feb 1926
William Norman McEachren1
Child of William Norman McEachren and Isabel F. Jackson
Sir Joseph David Ellsworth Flavelle, 3rd Bt.1 
He succeeded as the 3rd Baronet Flavelle, of Toronto, Canada [U.K., 1917] on 19 December 1977.2 On his death his baronet became extinct.2
Children of Sir Joseph David Ellsworth Flavelle, 3rd Bt. and Muriel Barbara Morton
- Muriel Catharine Flavelle1 b. 6 Mar 1944
- Virginia Ann Flavelle1 b. 28 Jul 1947
- Elizabeth Ann Flavelle1 b. 2 Jun 1950
- [S34] BP1970 page 1022. See link for full details for this source. Hereinafter cited as. [S34]
- [S130] Wikipedia, online http;//www.wikipedia.org. Hereinafter cited as Wikipedia.
- [S379] Leigh Rayment’s Peerages, online http://www.leighrayment.com. Hereinafter cited as Leigh Rayment’s Peerages.
Muriel Barbara Morton1
From 1 September 1942, her married name became Flavelle.1
Children of Muriel Barbara Morton and Sir Joseph David Ellsworth Flavelle, 3rd Bt.
- Muriel Catharine Flavelle1 b. 6 Mar 1944
- Virginia Ann Flavelle1 b. 28 Jul 1947
- Elizabeth Ann Flavelle1 b. 2 Jun 1950
- [S34] BP1970 page 1022. See link for full details for this source. Hereinafter cited as. [S34]
D. Reginald Morton1
Child of D. Reginald Morton
- [S34] BP1970 page 1022. See link for full details for this source. Hereinafter cited as. [S34]
Muriel Catharine Flavelle1
- [S34] BP1970 page 1022. See link for full details for this source. Hereinafter cited as. [S34]