Mt.Rushmore is the Rock group with four members.
The southeastern face of Mount Rushmore in South Dakota’s Black Hills National Forest is the site of Four gigantic carved sculptures depicting the faces of U.S. Presidents:
George Washington, Thomas Jefferson, Abraham Lincoln and Theodore Roosevelt.
All dead, one was assassinated --> Four of them are dead, Abraham Lincoln was assassinated.
I run forever, With a roaring call. Yet I have no throat, Or any legs at all.
Rock wears away, Whilst I grow. You try to race me, And receive a blow.
What am I?
When I am quick I can be deadly,
I am a rock, shell and bone medley.
If I was made into a man, I’d make people dream,
I gather in my millions by ocean, sea and stream.
A group of four brothers did travel the land, with only one steed shared among the whole band. Though always surefooted, no matter the weather, their mount would go lame if they didn't ride together. When one of the brothers was thrown and misplaced, he was left where he lay and was quickly replaced. When the ride became old and the brothers not needed, to a game for all ages they simply retreated. When many a player would fling them about, and ringing a post was the victory shout.
Name us.