Who is an example of an artist who used protest lyrics in his or her songs during the 1960s?

Bob Dylan, Creedence Clearwater Revival

Explanation:

Bob Dylan is the first example that comes to mind, with songs like "Masters of War", where the initial lyrics are:

"Come you masters of war

You that build the big guns

You that build the death planes

You that build all the bombs

You that hide behind walls

You that hide behind desks..."

Another example may be Creedence Clearwater Revival, with songs like "Fortunate Son" with the initial lyrics:

"Some folks are born made to wave the flag,

Ooh, they're red, white and blue.

And when the band plays "Hail to the chief",

Ooh, they point the cannon at you, Lord..."

Where you can see that a common topic in the protest songs was the anti-war movement.

they are often in theme and variations