Patty also played Cousin Ingeborg on the TV series "Mama," which was the TV version of the film
I Remember Mama
Add
: Gloria McMillian, who played Harriet Conklin teenage daughter of high school principal Osgood Conklin (Gale Gordon) on "Our Miss Brooks." She's 80 this year.

Patty (now Patricia) McCormick, who achieved stardom, and an Oscar nomination, with The Bad Seed, had a short-lived series in the 1950s called Peck's Bad Girl.
But throughout it all, my motto was "Dignity! Always dignity!".

Lori Nelson and Barbara Eden (How to Marry a Millionaire)
But throughout it all, my motto was "Dignity! Always dignity!".

"Topper"
Anne Jeffreys, who played Marion Kerby, is 93.

The Twilight Zone premiered in October 1959, so for the three months of the 50s that the program ran, here are some still surviving members of the cast:
Earl Holliman (Ep #1)
Martin Landau (Ep #3)
Ron Howard (Ep #5)
Jean Marsh (Ep #7)
It looks like the odd-numbered stories were the luckiest for cast members.
mf
Trust me. Im The Doctor.

Nanette Fabray was, also, among the players on "Your Show of Shows."
Tim Considine and David Stollery (AKA "Spin and Marty," from the Mickey Mouse Club series), are closer to "Baby Boomer" years but they're still with us.

Robert Conrad was in Hawaiian Eye also.
Not only is Jay North (Dennis The Menace) still alive, but so is Gloria Henry, who played his mother.
Lola Albright (Peter Gunn) and Dwayne Hickman (The Bob Cummings Show, Dobie Gillis). Other Dobie alumni are Warren Beatty and Tuesday Weld.
But throughout it all, my motto was "Dignity! Always dignity!".

Sorry back again, can't help myself.
Love 1950's tv series.
RIN TIN TIN
Lee Aaker - Corporal Rusty
RIFLEMAN
Johnny Crawford - Mark McCain
HAWAIIAN EYE
Connie Stevens - Cricket Blake
And one of my faves
CHEYENNE
Clint Walker - Cheyenne Bodie
He turned 89 May 30th.
cheers

LEAVE IT TO BEAVER
Jerry Mathers - Theodore "Beaver" Cleaver
Tony Dow - Wally Cleaver.
Ken Osmond - Eddie Haskell
FATHER KNOWS BEST
Billy Gray - Bud
Elinor Donahue - Betty
Lauren Chapin - Kathy
FURY
Bobby Diamond - Joey Newton
CIRCUS BOY
Micky Dolenz - Corky
Alas Noel Neill passed away aka Lois Lane the second one in Adventures of Superman with George Reeves. Did you know the first Lois Phyllis Coates is still alive.
She turned 89 January 15th

So glad you asked this question. Now I know who Hugh Downs is.
cheers

72 year marriage? That's longer than the life span of the average 1960s rocker.
I might be mistaken, but I believe Carl Reiner wrote some of the sketches in "The Dinah Shore Chevy Show", of which some colour video-tapes recently got repeated.
Poof! There Goes Perspiration!

Carl Reiner,
Your Show of Shows
, etc.
Character actor Norman Lloyd, who performed on various anthology series in the 1950s; at 101, still a working actor, his most recent credit 2015's
Trainwreck
.
If you count announcers, there's Hugh Downs, who began as an announcer back in 1947 as well as appearing on
The Jack Paar Show
and news shows. He also has one of the longest continuous marriages on IMDb: 72 years!
Chimpanzee "actor" J. Fred Muggs, one of the first stars of the
Today
show, doesn't have a death date listed on IMDb, so it's possible he's still around somewhere.
I'm not crying, you fool, I'm laughing!
Hewwo.