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.
Baby's father
Benjamin Lieberman
b. 17 Nov 1914
d. 19 Sep 1984
Baby's mother
Elizabeth Koller
b. 10 Oct 1914
d. 21 Jan 2001