GUIDE TO THE SOUNDEX SYSTEM The Soundex filing system, alphabetic for the first letter of surname and numeric thereunder as indicated by divider cards, keeps together names of the same and similar sounds but of variant spellings. To search for a particular name, you must first work out the code number for the surname of the individual. NO NUMBER IS ASSIGNED TO THE FIRST LETTER OF THE SURNAME. If the name is Kuhne, for example, the index card will be in the "K" segment of the index. The code number for Kuhne, worked out according to the system below, is 500. SOUNDEX CODING GUIDE Code Key letters & Equivlents 1 b, p, f, v 2 c, s, k, g, j, q, x, z 3 d, t 4 l 5 m, n 6 r The letters a, e, i, o, u, y, w, and h are NOT coded. The first letter of a surname is NOT coded. Every Soundex number must be a 3-digit number. A name yielding no code numbers, as Lee, would thus be L 000; one yielding only one code number would have two zeros added, as Kuhne, coded as K 500; and one yielding two code numbers would have one zero added, as Ebell, coded as E 140. Not more than three digits are used, so Ebelson would be coded as E 142, not E 1425. When two key letters or equivalents appear together, or one key letter immediately follows or precedes an equivalent, the two are coded as one letter, by a single number, as follows: Kelly, coded as 400; Buerck, coded as 620; Lloyd, coded as 300; and Schaefer, coded as 160. If several surnames have the same code, the cards for them are arranged alphabetically by given name. There are divider cards showing most code numbers, but not all. For instance, one divider may be numbered 350 and the next one 400. Between the two divider cards there may be names coded 353, 350, 360, 364, 365, and 355, but instead of being in numerical order they are interfiled alpha- betically by given name. Such prefixes to surnames as "van," "Von," "Di," "de," "le," "D'," "dela," or "du" are sometimes disregarded in alphabetizing and in coding. The following names are examples of Soundex coding and are given only as illustrations. NAME LETTERS CODED CODE NO. Allricht l, r, c A 462 Eberhard b, r, r E 166 Engebrethson n, g, b E 521 Heimbach m, b, c H 512 Hanselmann n, s, l H 524 Henzelmann n, z, l H 524 Hildebrand l, d, b H 431 Kavanagh v, n, g K 152 Lind, Van n, d L 530 Lukaschowsky k, s, s L 222 McDonnell c, d, n M 235 McGee c M 200 O'Brien b, r, n O 165 Opnian p, n, n O 155 Oppenheimer p, n, m O 155 Riedemanas d, m, n R 355 Zita t Z 300 Zitzmeinn t, z, m Z 325 -Source: The National Archives, Wash., DC Soundex codes are used in 1880, 1900 and 1910 census. Published indexes may be available on most states for prior census years. -Mike Cambre