Son of Charles and Betty Ryder, of Horwich, Lancashire. An old boy of Rivington and Blackrod Grammar School.
- Surname: Ryder
- Forename: William Wallace
- Date of birth: Not known
- Birth place: Not known
- Place of residence: Not known
- Gender: Male
- Age of death: 20
- Place of death: Not known
- Date of death: January 28th, 1944
- Casualty type: Not known
- Service medals: Not known
- Silver War badge: Not known
- Awards: Not known
- Rivington and Blackrod Grammar School WWII Roll of Honour.
- CWGC Memorial: Durnbach War Cemetery, Bad Tolz, Bayern, Germany
- CWGC reference: Collective grave 5. G. 8-11.