Music icon Bob who wrote the song suggested by the starts of this puzzle's theme entries

• United States songwriter noted for his protest songs (born in 1941)
• Sixties singer Bob
• 'Blowin' in the Wind' singer
• Thomas the poet
• Blanchett role (sort of) in a 2007 movie
• The Wallflowers lead singer Jakob
• Grammy winner for "Time out of Mind"
• Bob who sang "A Hard Rain's A-Gonna Fall"
• "Lay Lady Lay" singer Bob

Wikipedia Word definitions in Wikipedia
Dylan is a Welsh male given name. It is derived from the word llanw , meaning "tide" or "flow" and the intensifying prefix dy- . Dylan ail Don was a character in Welsh mythology, but the popularity of Dylan as a given name in modern times arises from its ...