Alice,

One of the reasons why some individuals have have more than one batch number or reference number is because. Some of the microfilms in the Family History Library, have been extracted more than once. And then some areas have been filmed more than once also.

As for how you can have 2 different batch numbers, for the same film number. that depends on when it was extracted. Because in the early extraction, the information was sent to the IGI. And the program was trying to use the same record template for all types of record collections. So for the Mexico and Latin America collections, they were trying to apply, an US record template to the records. Such as, on a christening record, the extractors were told to only extract the name of the child, christening date, and the names of the parents. They were told to disregard all other information in the record (such as birth date, birth place, names of grandparents, etc.). Then came along other record collections, such as the