Herbert Senior records that he drew on his cell wall the “Chart of the Ages ” from the Bible study aid The Divine Plan of the Ages, but it has not been found.
Herbert Senior meenutab, et ta joonistas oma kambriseinale aegade tabeli piibliuurimise abivahendist „Jumalik aegade kava ”, kuid nüüd pole seda suudetud üles leida.