Perhaps you should try some spelling variations:
"william rivers poster" » "william ryves poster", "william rogers poster", "william ives poster", "william rivers peter", "william papers poster", "william rivers water"
"william rider peter" » "william robert peter", "william ridgeway peter", "william rinder peter", "william grieder peter", "william nieder peter"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("william rivers poster") OR ("william rider peter")).
• Removing quotes may allow a broader search: (( william rivers poster ) or ( william rider peter )).
• Adding a wildcard symbol may retrieve word variants: (("william rivers poster") or ("william rider peter"))*.