THE NUMBERING
My numbering system is based on the 5-generation pedigree sheet. If you print a five generation pedigree sheet it looks like this:
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Notice how each name is automatically assigned a number. For your first five generations of direct line ancestors, the numbering in this system is taken directly from the pedigree sheet. You are always number 01 in your genealogy. Because of this, it is important to keep your genealogy in different folders on the computer for each person who does genealogy on the same computer.
Each and every person in your genealogy files must be assigned a number. The first two digits of each person's number is based on the 5-generation pedigree sheet. People numbered 01-31 are the same on the pedigree sheet and in the EGE system. So, if you are scan photographs of your maternal grandmother, you would number the images 07_001, 07_002, 07_003 and so forth. Your maternal grandmother's number is 07. The three numbers at the end are merely image numbers. With three digits you can have up to 999 images. Make sure you keep the zero(s) before the numbers to keep the files lining up correctly!
There you have the numbering for your first 30 direct line ancestors and yourself.
CHILDREN
Children receive a parent's number and an individual id# based on birth order. They should get the number from the parent who is a blood relative to you. If both parents are blood relatives, give them the father's number. Then, they receive two alpha characters representing their birth order. For example, my siblings are 02AB, 02AC, 02AD and 02AE. I would be 02AA (I'm the oldest child) except that I have a shorter number, 01, and you always number somebody by their shortest possible number. Because I am also technically 02AA, I do not assign that number to anybody else or it could get confusing. In this example the 02 represents my father. Even though I am a blood relative of him and my mother, I use a patriarchal order to number.
In another example, one of my cousins is 04ABAA. The 04AB is my aunt (second child of my paternal grandfather) and AA is her oldest child, my cousin. As you see, you just keep adding two alpha characters for each generation.
The exception to children being numbered for a blood relative is when they are the child of the non-blood relative and not the blood relative. For example, my aunt married a man who had been married before. He had children from that marriage. In my files they are numbered for him and not for my aunt (since they are not her children and were not adopted by her). Their numbers are 06ADA1AA and 06ADA1AB. My uncle's number is 06ADA1 (spouse* of my maternal grandfather's fourth child) and then the children are in birth order. The children he and my aunt had together are 06ADAA and 06ADAB. Again, 06AD is my aunt and then the numbers for each child.
If there are more than 26 children, simply move on to B1, B2... for the birth order numbering.
*SPOUSES
Spouses receive your relative's number and then an alpha character and a number between 1-9. For example, my spouse is 01A1. He receives my number first (to show that he's my husband) and then the A1. If I was married a second time, my spouse would be 01A2. This goes all the way through 01A9. If I were to marry a tenth time (I don't think I have anyone in my genealogy with more than nine spouses, but it could happen!) then they would be 01B0, 01B1, 01B2 and so forth. I include the zeroes starting with the Bs to hold the tens place. In other words, 01B0 is the tenth spouse, 01B1 is the 11th and so forth. This makes it easy to see at a glance what number spouse they are.
Remember, if a person can technically have more than one number, give them the shortest number. In other words, my maternal grandma is number 07 according to the EGE system, but technically she could also be 06A1. Use the 07 because it is shorter. This helps you know at a glance that she is a direct line ancestor.
If, however, my maternal grandpa had more than one wife I would label the other wives (any that were not my direct line) with the spouse labeling system. So, if my grandma (07) was the first wife and grandpa remarried - the second wife would be 06A2 and I would know when I looked at her number that she was my maternal grandpa's second wife and that I was not descended through her.
DIRECT LINE BEYOND THE 5th GENERATION
PRACTICE
This is the numbering system. If you want to see what a directory might look like once you have put several images into it, see Illustration E in the file system bite. See if you can identify who is who in that illustration! It may seem confusing, but it is actually quite simple once you get the hang of it. Start numbering your ancestors in whatever computer software you use (or just play around with it on paper if you haven't started using software yet!). I use PAF (Personal Ancestral File - free software) and it is very simple to go into every record and put the number into the "custom ID" field. Then you can go into TOOLS, PREFERENCES, NAMES, and where it says, "append to name" select the "custom ID" option. This will cause the new numbers to show up instead of the weird RIN numbers. This is what it looks like if you click the "family" tab in my file:
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