The Computer File index or IGI
Posted: 01 Apr 2021, 18:54
Many newer genealogists will have possibly heard of the IGI (International Genealogical Index) but probably do not know what it is or what it contains.
The IGI or rather the Computer File Index as it was then called came to the UK after a genealogist named Fred Filby visited Salt Lake City. It arrived here in the form of the 1976 edition on microfiche. This edition was enlarged and updated a number of times until in 1981 it was renamed the IGI.
Unfortunately many misguided genealogists thought that this meant it was an index of Parish Registers and wrongly used it as such.
In reality the IGI was a combined index of not only the Controlled Extractions (the filmed parish registers) but also the patron submissions and records recorded of the Church Sealing Conversion Program (an internal LDS procedure).
Many did not understand this combination of record sources and as a result the IGI gained a reputation of being inaccurate and being incomplete, but really those who complained about it were failing to understand what it contained and therefore used it in the wrong manner.
The Source Batch indicates what the source of the record was-
Controlled Extraction Records usually began with C or P for Baptisms or Christenings.
J, K or M but excluding M1 for Marriages. Some specific record sets were all number sets starting 725..., 745... and 754...
It should also be noted numeric sets with the third number being less than 4 would be patron submissions.
If these guidelines are followed the IGI was a useful accurate database.
The IGI or rather the Computer File Index as it was then called came to the UK after a genealogist named Fred Filby visited Salt Lake City. It arrived here in the form of the 1976 edition on microfiche. This edition was enlarged and updated a number of times until in 1981 it was renamed the IGI.
Unfortunately many misguided genealogists thought that this meant it was an index of Parish Registers and wrongly used it as such.
In reality the IGI was a combined index of not only the Controlled Extractions (the filmed parish registers) but also the patron submissions and records recorded of the Church Sealing Conversion Program (an internal LDS procedure).
Many did not understand this combination of record sources and as a result the IGI gained a reputation of being inaccurate and being incomplete, but really those who complained about it were failing to understand what it contained and therefore used it in the wrong manner.
The Source Batch indicates what the source of the record was-
Controlled Extraction Records usually began with C or P for Baptisms or Christenings.
J, K or M but excluding M1 for Marriages. Some specific record sets were all number sets starting 725..., 745... and 754...
It should also be noted numeric sets with the third number being less than 4 would be patron submissions.
If these guidelines are followed the IGI was a useful accurate database.