| Sources |
- [S1582] State of California Department of Health Services, Center for Health Statistics., California, Death Index, 1940-1997, ((http://www.ancestry.com : 2000)), accessed 7 Jan 2020), Wilko K. Hook, 1921, Placer County. (Reliability: 3).
- [S1241] Find A Grave, Find A Grave, ((http://www.findagrave.com/)), accessed 7 Jan 2020), Wilko K. Hook (Memorial #103216821); added by Scott Hayes (Member #47380085). (Reliability: 3).
- [S2071] California Department of Public Health, California, County Birth, Marriage, and Death Records, 1849-1980, ((http://www.ancestry.com : 2017)), accessed 7 Jan 2020), Hook-Eberhardt, 1900, Tulare County, marriage. (Reliability: 3).
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