Structure of a geneological table
| Generation | Ancestor numbering | Designation |
| 1 | Rehearsing and | |
| I | 2 and 3 | Parents |
| II | 4 to 7 | Grandparents |
| III | 8 to 15 | Great-grandparents |
| IV | 16 to 31 | Old parents |
| V | 32 to 63 | Old grandparents |
| VI | 64 to 127 | Old great-grandparents |
| VII | 128 to 255 | Upper parents |
| VIII | 256 to 511 | Upper grandparents |
| IX | 512 to 1023 | Upper great-grandparents |
| X | 1024 to 2047 | Master parents |
| XI | 2048 to 4095 | Master grandparents |
| XII | 4096 to 8191 | Master great-grandparents |
| XIII | 8192 to 16,383 | Ancestor parents |
| XIV | 16384 to 32,767 | Ancestor grandparents |
| XV | 32,768 to 65,535 | Ancestor great-grandparents |
| XVI | 65,536 to 131,071 | Ancestor parents |
| XVII | 131,072 to 262,143 | Ancestor grandparents |
| XVIII | 262,144 to 524287 | Ancestor great-grandparents |
| XIX | 524,288 to 1,048,575 | Ore parents |
| XX | 1,048,576 to 2,097,151 | Ore grandparents |
| XXI | 2,097,152 to 4,194,303 | Ore great-grandparents |
| XXII | 4,194,304 to 8,388,607 | Ore ancestor parents |
| XXIII | 8,388,608 to 16,777,215 | Ore ancestor grandparents |
| XXIV | 16,777,216 to 33,554,431 | Ore ancestor great-grandparents |