1 (Alle informatie omtrent Teede Foppes Walthuis en zijn afstammelingen is afkomstig en/of gecontroleerd door Teede Jan Walthuis in het jaar 2003.).

2 Klaas Osinga.

3 (http://archiver.rootsweb.com/th/read/NETHERLANDS/2001-09/1000595364).

4 Pieter Jansma.

5 Jacob Wiersma.

6 The Church of Jesus Christ of Latter-day Saints, "FamilySearch Family Tree," database, <i>FamilySearch</i> (https://www.familysearch.org : accessed 17 Jan 2021), entry for Thomas Alberts, person ID MBTF-QKP.

7 The Church of Jesus Christ of Latter-day Saints, "FamilySearch Family Tree," database, <i>FamilySearch</i> (https://www.familysearch.org : accessed 17 Jan 2021), entry for Lieuwe Reinders Vellinga, person ID L24W-J4D.

8 (http://www.vanderhauw.nl/stamboom/gen-hauw/genera~2/2coe/l-2coe.htm), http://www.vanderhauw.nl/stamboom/gen-hauw/genera~2/2coe/l-2coe.htm.

9 M. Groen.

10 Ryksargyf Friesland.

11 Hank Versteeg (http://familytreemaker.genealogy.com/users/v/e/r/Henricus-------hank-G-Versteeg/tree1.html).

12 Carl Horn (http://www.homepages.hetnet.nl/~horn34/vleer.htm).