1-2.3 Family linkage records.

Family linkage asks whether the records represent the same family (F1). In this case there are a number of individuals represented, like husband (I1), wife (I2), and children (e.g., I3) belonging in one nuclear family. A good example of this kind of linkage regularly occurs among families represented on Family Group Records. The Library of the Family & Church History Department of the Church of Jesus Christ of Latter-day Saints houses a vast collection of such "group sheets" called the Family Group Records Archives (FGRA). This collection, established in 1942 and supplanted by a very different system in 1970, represented results of research on families submitted for Church temple work done during that period of time. The FGRA system was an attempt to avoid duplication by establishing standards of individual and family identification. To do so researchers brought data for several individuals together on one record of their common nuclear family, each individual filling a different slot on the group sheet. This was to fix the identification of these individuals. They typically also included names referring to the same individuals in different slots on other family group sheets. There are slots for the siblings' spouses, the parents' other spouses, and the parent's own parents' names. Thus one individual might often be entered on other group sheets depending on that individual's role in the families represented.

Three Basic Record Linkage Entities