Dumes.Net
A website dedicated to the family of Chaim and Sadie Silk Dumes from Viski, Latvia
Dumes.Net
At the top of the tree are brothers Chaim (A), Jossel-Leib (B) and Schender (C). Each generation adds a letter; the letter represents your birth order, A for the 1st, B for the 2nd, etc.
So Sarah, first child of Chaim, is AA. Her husband, Jacob Kaplan, is Aa, the lower-case a indicating that he married into the Dumes family.
I've also used the lower-case letter for my two step-sons to indicate a non-bloodline Dumes relationship.
Louis's father
Chaim Dumes
b. 30 Nov 1859
d. 30 Jan 1905
Louis's mother
Scheina-Freida Nowoselok
b. 04 Jul 1861
d. 06 Aug 1933
Louis' name in Viski, sometimes referred to as the Yiddish name, was Avram-Leib.