What are the rules for Daitch-Mokotoff soundex coding?
The rules for converting surnames into Daitch-Mokotoff Soundex Code numbers are listed below. • Names are coded to six digits, each digit representing a sound listed in the coding chart (below). • When a name lacks enough coded sounds for six digits, use zeros to fill to six digits. ‘GOLDEN’, which has only four coded sounds [G-L-D-N], is coded as 583600. • The letters A, E, I, O, U, J, and Y are always coded at the beginning of a name, as in ‘ALPERT’ 087930. In any other situation, they are ignored, except when two of them form a pair and the pair comes before a vowel, as in ‘BREUER’ 791900 but not ‘FREUD’. • The letter H is coded at the beginning of a name as in ‘HABER’ 579000 or preceding a vowel as in ‘MANHEIM’ 665600, otherwise it is not coded (see ‘OHRBACH’). • When adjacent sounds can combine to form a larger sound, they are given the code number of the larger sound. ‘MINTZ’ which is not coded MIN-T-Z but MIN-TZ 664000. • When adjacent letters have the same code number, they are
