Giles Maurice: 22 Ağustos 2011 tarihinde Wayback Machine sitesinde [https://web.archive.org/web/20110822231446/http://nafsk.se/pipermail/dcml/2002-August/014107.html arşivlendi. Family trees, Dingus McDuck, Titus McDuck, Abner "Whitewater" Duck [to Don Rosa]]