July 4th Celebration from 1970

Included In the cast were the following (some were uncredited):

Ann Margret, Lucille Ball, Jack Benny, Dan Blocker, Roscoe Lee Browne,
George Burns, Owen Bush, James Caldwell, Glen Campbell, Johnny Cash,
Roy Clark, Bing Crosby, Phyllis Diller, Edward Faulkner, Lorne Greene,
Harry Hickox, Celeste Holm, Bob Hope, Kay E. Kuter, Michael Landon,
Forrest Lewis, Dean Martin, Dick Martin, Ross Martin, Greg Morris,
Ricky & David Nelson, Hugh O'Brian, Dan Rowan, William Shatner,
Orville Sherman, Red Skelton, Tom Smothers, Leslie Uggams,
Jesse Vint, John Wayne, Patrick Wayne, Dennis Weaver,
Dan White, Hal Williams, and the Doodletown Pipers.

How many can you identify in the first viewing