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.
Jimmy's father
Theodore Gluck
b. 10 Sep 1923
d. 1984
Jimmy's mother
Libby Dumes
b. 01 Mar 1924
d. 19 Jul 1984