Eureka, California
"Eureka" received its name from a Greek word meaning "I have found it!" This exuberant statement of successful (or hopeful) gold rush miners is also the official motto of the State of California. Eureka is the only U.S. location to use the same seal as the state for its seal.
Tooke
Tooke is said to be derived "from the Old Swedish (pre 7th century Old Scandinavian origin) personal name "Tuke", itself claimed to be short form (in Latin a diminutive or in Greek a hypocoristicon) of "Thorkettill" translating as "Thors cauldron", although some sources suggest the derivation is from "Tiodgeir", meaning "people-spear".". Two Runestone inscriptions contain the personal name Toki: the Gunderup Runestone and the Sjörup Runestone. The personal name Thorkell is mentioned in two sagas: Hrafnkel's Saga and the Laxdale Saga