Can you ace this week's Secret Theme rounds?

Each group of 10 questions has a theme running through their answers. Can you answer the questions and figure out the theme? Answers will be posted in a few days.

Ray's:

1) The British soul group The Foundations had their biggest chart hit in the US (#3) in 1968; name the song.
2) Los Angeles is the largest city in population in California; which one is second?
3) Which US state is indirectly named after an Englishman named Thomas West?
4) What language is the most commonly spoken of the Western Slavic language family?
5) What endangered European language is called Kernewek by speakers?
6) What southern province of Spain has its capital at Seville?
7) What Mexican fast-food chain, mostly located in the West and Midwest, is owned and operated by Denny's?
8) What Warner Brothers cartoon character, who has a nemesis named George P. Dog, was introduced in 1946 in a short titled Walky Talky Hawky?
9) What is the four-letter stock abbreviation for software giant Sun Microsystems, Inc. (it has nothing to do with the name of the company, it's one of their products)?
10) What American historical relic was broken in half accidently by a team led by Col. Theophilus Cotton in 1774?

... and what's the theme?

Frank's:

1) What was The Hollies' first Top 40 single in the US (1966)?
2) What was comedian Jack Benny's perpetually claimed age?
3) Which astrological sign uses the goat as a symbol?
4) What musical figure's real name was Christopher Wallace?
5) What fictional character's "real" name (the character was referred to as something else more commonly in a seried of stories) is Vice Admiral Sir Miles Messervy, KCMG?
6) What number was worn by both Wilt Chamberlain and Dan Marino?
7) What respected university has campuses at Evanston, IL and in Chicago?
8) Fawn Hall had 15 minutes of fame in 1987 for being someone's secretary, whose?
9) What European country has been led by the House of Grimaldi since 1297?
10) What band, active 1964-1973, had Roger McGuinn as the only consistent member?

... and what's the theme?