The set of books to look for is "Dewey Decimal Classification and Relative Index," devised by Melvil Dewey. These tips are based on Ed. 20 edited by John P. Comaromi, et al. (Forest Press; Albany, NY; 1989)

(vol. 3, pg.706)
929 is the number for: "Genealogy, names and insignia" broken down further as -

• 929.1 Genealogy
• 929.2 Family Histories
• 929.3 Genealogical Sources (census records, court records, tax lists, wills)
  • This classification would be carried further by location. The location classification numbers are never used alone. They are always added on to an existing classification number. For example, a book numbered 929.378296 would tell one:
    Genealogy[929] Genealogy Source[.3] Nebraska[782] Cheyenne Co[96]
• 929.4 Personal Names
  • .42 Surnames
  • .44 Forenames
• 929.5 Cemetery Records (formerly 929.3)
• 929.6 Heraldry
• 929.7 Royal houses, peerage, gentry, orders of knighthood
• 929.8 Awards, orders, decorations, armorial bearings, autographs
• 929.9 Forms of insignia and identification

For histories, there would be the following initial classifications:

• 978 General History of North America
  • 978.2 Nebraska history
  • 978.201 Early to 1854
  • 978.202 Territorial Period 1854-1867
  • 978.203 Statehood period 1867-....
    • .2031 1867-1918
    • .2032 1918-1945
    • .2033 1945-....

One would use the location classification numbers listed in the following table for the counties. For example, the number 978.202782743 would be:
U.S History[978] Nebraska[.2] 1854-1867[02] Nebraska[782] Rock Co.[743]

Swept March 2000