Reference Centre, LDS Resources
FAQs about the I.G.I. - The Answers
The information at the bottom of the I.G.I. translates thusly:
Batch No.: is the number arbitrarily assigned by the Family History Department to each resource from which data has been extracted. For a full list of batch numbers you might wish to take a look at the Batch Number Table that I have posted on this website.
Dates: Are the start and end dates of the information contained in the "batch". It does not necessarily follow that all dates during the specified time period have yet been extracted and entered on the I.G.I. Generally, they have been but there are some anomalies. Please also be aware that there may well be a number of gaps in the data ranging from a small span of dates to a very large span of years, as is the case if information is taken from a Bishop's or Archdeacon's Transcript where the period 1642 through 1659 is generally missing.
Source Call No: This is the Family History Library's microfilm, microfiche or book call number which is used to requisition the resource from the Family History Library at Salt Lake City or from a local Family History Centre. These numbers remain the same worldwide. But, please be aware that the Family History Library will not circulate actual books to any Family History Centre.
Type: is a statement as to whether it was microfilm, microfiche, book or some other physical type of source from which data was extracted for the "batch".
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