The key component to this system is the MARRIAGE IDENTIFICATION NUMBER. The Marriage Identification Number or MRIN (for short) ties the family together. Every individual has their own unique record ID number (RIN), but it is the family group record number where everyone is tied together. This means that if I want to file or retrieve a paper document that pertains to the John Smith family, whose family group record number is 38, I just have to open my notebook to the tab which is labeled 38, and that's where I find a copy of the Family Group Record with all the notes printable, and where I file all of my paper documents that pertain to this family.

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