Parent Lineage
Williamson, Mount: 8,248' CA 1,588' Rise
| Depth | Parent | Elevation | Saddle | Prominence | State |
| 1 | Islip, Mount | 8,250' | 7,588' | 662' | CA |
| 2 | Throop Peak | 9,138' | 8,540' | 598' | CA |
| 3 | Baden-Powell, Mount | 9,404' | 6,595' | 2,809' | CA |
| 4 | Pine Mountain | 9,652' | 8,791' | 861' | CA |
| 5 | San Antonio, Mount | 10,068' | 3,821' | 6,247' | CA |
| 6 | Ten Thousand Foot Ridge | 10,091' | 9,780' | 311' | CA |
| 7 | Lake Peak | 10,178' | 9,834' | 344' | CA |
| 8 | San Gorgonio Mountain | 11,501' | 3,218' | 8,283' | CA |
| 9 | Olancha Peak | 12,130' | 8,992' | 3,138' | CA |
| 10 | Cirque Peak | 12,908' | 11,988' | 920' | CA |
| 11 | Langley, Mount | 14,034' | 12,849' | 1,185' | CA |
| 12 | Whitney, Mount | 14,500' | 4,423' | 10,077' | CA |
Green = More Prominent Parent
Immediate Children:
| # | Child | Elevation | Prominence | State |
| 1 | 8155 | 8,155' | 251' | CA |
| 2 | Waterman Mountain | 8,038' | 1,418' | CA |
| 3 | Pallett Benchmark | 7,983' | 1,024' | CA |
| 4 | Will Thrall Peak | 7,845' | 185' | CA |
| 5 | Pallett Mountain | 7,780' | 480' | CA |
| 6 | 6621 | 6,621' | 321' | CA |
| 7 | Shoe Benchmark | 4,860' | 400' | CA |
| 8 | Sandrocks, South | 4,420' | 120' | CA |
| 9 | Sandrocks, North | 4,420' | 80' | CA |
| 10 | "Goodykoontz Peak" | 7,574' | 240' | CA |
| 11 | Devils Chair | 5,100' | 40' | CA |
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