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Book and Film Numbers Used by the FamilySearch Library (view source)
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There have been two systems for numbering books and three systems for numbering films. | There have been two systems for numbering books and three systems for numbering films. | ||
== Book Numbers == | |||
=== | === Previous book numbering system === | ||
The first numbering system for books used a topic code or a geographic code and a number, such as: | The first numbering system for books used a topic code or a geographic code and a number, such as: | ||
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*B15A139 | *B15A139 | ||
There was no direct corrolation between any of the letters in the call number and the surname of the family whom the book was about. | There was no direct corrolation between any of the letters in the call number and the surname of the family whom the book was about. | ||
=== | === Current book numbering system === | ||
The current book numbering system is based on the universally recognized Dewey Decimal system, with only slight alterations. The Dewey Decimal system designator for histories is the 900 series. Since the majority of the library's books are historical in nature, the 900 series is used most in the library. Other designators seen in the library are: | The current book numbering system is based on the universally recognized Dewey Decimal system, with only slight alterations. The Dewey Decimal system designator for histories is the 900 series. Since the majority of the library's books are historical in nature, the 900 series is used most in the library. Other designators seen in the library are: | ||
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*X22b for a census index created by the Bedfordshire Family History Society | *X22b for a census index created by the Bedfordshire Family History Society | ||
== Microfilm Numbers (GS) == | |||
Microfilm numbers are also referred to as "GS Numbers" referring to [[Genealogical Society of Utah|The Genealogical Society of Utah]]. | Microfilm numbers are also referred to as "GS Numbers" referring to [[Genealogical Society of Utah|The Genealogical Society of Utah]]. | ||
=== | === First numbering System === | ||
The first numbering system for films used an F (for film), then F.H. (for family history) or a geographic code, then a number or a letter and number and often a part number. A part number designated a separate film in a film series. Examples: | The first numbering system for films used an F (for film), then F.H. (for family history) or a geographic code, then a number or a letter and number and often a part number. A part number designated a separate film in a film series. Examples: | ||
*F F.H. 441 | *F F.H. 441 | ||
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*F Vt. W 25a pt. 2<br> | *F Vt. W 25a pt. 2<br> | ||
=== | === Second numbering system === | ||
The second numbering system was just numbers, starting at number 1, often with a part number attached. These numbers were also called "red numbers" because, for a number of years, the numbers were printed in red ink on the film boxes. Again a part number designated a separate film in a series of films. Examples: | The second numbering system was just numbers, starting at number 1, often with a part number attached. These numbers were also called "red numbers" because, for a number of years, the numbers were printed in red ink on the film boxes. Again a part number designated a separate film in a series of films. Examples: | ||
*1448 | *1448 | ||
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The tricky part of this system is how to know if a number without a part number -- such as 2745 -- is an old, red number or if it is a current number. Old, red numbers stopped at about 60,000, so any past that are current numbers. | The tricky part of this system is how to know if a number without a part number -- such as 2745 -- is an old, red number or if it is a current number. Old, red numbers stopped at about 60,000, so any past that are current numbers. | ||
=== | === Third numbering system === | ||
The current numbering system started over with number 1 and new films are assigned the next sequential number. No letters or part numbers are used. As the library now has over 2 million films in its collection, zeros are sometimes added on the front of a film number to make it a 7-digit number, but they are not needed. Numbers are good with or without the leading zeros. For example: | The current numbering system started over with number 1 and new films are assigned the next sequential number. No letters or part numbers are used. As the library now has over 2 million films in its collection, zeros are sometimes added on the front of a film number to make it a 7-digit number, but they are not needed. Numbers are good with or without the leading zeros. For example: | ||
*0000001 | *0000001 | ||
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Blocks of numbers were assigned to regions and by film size (16 and 35 mm). Because of this you will find that sequential numbers may be from the same country but not from the same | Blocks of numbers were assigned to regions and by film size (16 and 35 mm). Because of this you will find that sequential numbers may be from the same country but not from the same | ||
project. | project. | ||
==The Parts Of a Microfilm == | == The Parts Of a Microfilm == | ||
=== Title Boards === | === Title Boards === | ||
Originally title boards were used to identify the microfilming project number and sequential film number in the project. Soon after microfilming began additional details were added to the title board indicating where the records were filmed, the records being filmed, the camera operator, and the week-ending date. | Originally title boards were used to identify the microfilming project number and sequential film number in the project. Soon after microfilming began additional details were added to the title board indicating where the records were filmed, the records being filmed, the camera operator, and the week-ending date. | ||