Which Pittsburgh Steelers players have all 4 Super Bowl rings in the 1970's?

Answer 1

From the wikipedia: * Twenty-two players earned four rings with the Steelers in the 1970's: Terry Bradshaw, Franco Harris, Lynn Swann, John Stallworth, Mel Blount, Jack Lambert, Jack Ham, Mike Webster, Donnie Shell, L. C. Greenwood, Rocky Bleier, Gerry Mullins, Larry Brown, Mike Wagner, J.T. Thomas, Loren Toews, Jon Kolb, Sam Davis, Steve Furness, Dwight White, Randy Grossman and the previously mentioned Joe Greene (who later added two more rings). At least five coaches were with the team all four years: George Perles, Louis Riecke, Woody Widenhofer and (as noted above) Chuck Noll and Dick Hoak. The list of Steelers front office staff receiving four rings during that era includes Director of Player Personnel Dick Haley.

Answer 2

Chuck Noll, Lynn Swann, Terry Bradshaw, Mike Webster, Jack Lambert, Jack Ham, Joe Greene, LC Greenwood, John Stallworth and Franco Harris.

Those are the centerpieces for winning the Pittsburgh Steelers 4 Super Bowls in 6 years.