A - Albert, Barbara's old boyfriend who managed to find her at the Douglas house.

B = Bub

C - Chip, the Trapper

D = William Demarest

E - Ernie Report, The

F = Fred MacMurray

G = Good Influence

H - Houk: Miss Houk causes Ernie problems as his teacher in Season 9.

I - If At First

J = Jerk = Polly’s Father

K - Off Key

L = Livingston brothers

M - Micky Dolenz, guest in season 12

N = Now, In My Day

O - O'Casey

P = Polly

P = Polly

Q = Quick-witted Uncle Charley

R = Robbie

S - The State vs. Chip Douglas

T = Tim Considine

U - A Horse for Uncle Charley

V = Vera Miles guested on the show

W - Wm. O'Casey

X - eX girlfriend: Jean Pearson became Mike's ex-girlfriend.

Y - Make Way for Yesterday

Z - zest: Ernie and his friends had a zest for seeing their fathers compete athletically and win.

A - Adjust or Bust

B = Bub

C - Clyde, Jeremy (S8)

D - drenched: Ernie is drenched when he falls into Zsa Zsa Gabor's pool.

E - Ernie

F - Francis, Gordon's dog

G - Good Influence

H = Barbara Harper

I = Mike in a Rush

J - James Brooks, a writer

K = Katie

L - Let's Take Stock

M - Mike's Brother

N - The Non-Proposal

O - Other People's Houses

P - Polly Wants a Douglas

Q = Quarrelsome = Uncle Charlie, at times

R - Robbie's Honey

S = Steve

T - Thompson, Ernie's previous adopted last name

U = Uncle Charlie

V - Victoria, one of Dodie's troublesome friends

W = William Demarest

X - X-Ray vision that one of Robbie's teachers appeared to have

Y = YeRning to be fully accepted = Barbara in Guest In The House

Z - Zsa Zsa's pool Ernie fell into

A - A Perfect Memory

B - Bill "Bub" O'Casey

C - Chip

D - Bad Day for Barbara

E = Ernie

F = Fire Watch

G - George Gobel

H = Harpers

I - If At First

J - J. P. Douglas

K - Off Key

L - Lonesome Katie

M = Step-mother Barbara

N - The New Vice-President

O = Charles O’Casey

P - Polly's Secret Life

Q = Quarrelsome and ornery; but softies underneath = Charlie & Bub

R - The Return of Terrible Tom

S = Steve

T = Three sons

U - Urgent work calls to Steve, occasionally

V - Raft on the River

W - Wyman, Jane

X - The Girls Next Door

Yelling by Uncle Charlie

Z = Organization Woman

A - August, Tom and Helen - - writers of an episode or two

B = Barry Livingston

C - Crocker, Yo Ho

D - Domestic Trouble

E - Ernie Thompson from season 4

F - Flashback

G = Gloria Swanson, who guested in an ep

H - Miss Houk

I - Ill, Ernie, after eating too much at the county fair

Jerk = Polly’s Father

K - Off Key

L - Lonesome Katie

M - My Three Strikers

N - (The) Non-Proposal

O - Other People's Houses

P - Polly Williams Douglas

Q = Dolores Quinton who played Mrs. Terry - a battle ax teacher in an ep

R = Robbie

S - Spring Will Be A Little Late

T - The Little Ragpicker

U - Unite or Sink

V - Small Adventure

W = William Frawley

X = X-Ray vision that one of Robbie's teachers appeared to have

Y - Young Sudsy

Z = Ernie fell into Zsa Zsa Gabor’s pool

A - The Birth of Arfie

A = Adjust or Bust

B - Both Your Houses

C - Casanova Trouble

D - Bad Day for Steve

E - The Elopement

F = William Frawley

G = Good Influence

H - Hank, Robbie's friend

I - Innocents Abroad

J - J. P. Douglas

K = Katie

L - Liverpool Saga

M - My Three Sons

N - The New Room

O - Office Mother

P - The Non-Proposal

Q - The Masculine Mystique

R - Rose Marie

S - Spring Will Be a Little Late

T - Triplets

U - Mike in a Rush

V - visits from Charley's old sea mates, lots of

W - Weekend in Tokyo

X - Mr. X who was supposedly spying on the Douglas house, as Steve was working on a top secret project

Y - Make Way for Yesterday

Z - Zsa Zsa's guest appearance

A - Albert

B - Butch Patrick

C - Chip, the Trapper

D - Dearings, next door in Calif.

E - Evening with a Star

F - Fergus

G - Going Steady

H - Miss Houk

I - Instant Hate

J = Jane Allen

K - Kellogg's, a sponsor

L = Livingston brothers

M - "Mike in a Rush"

N = Now, In My Day

O - O'Caseys

P - Pretty as a Picture

Q - Quarter, a lot of money back then

R = Robbie

S = Spring Will Be a Little Late

S - Sylvia Sidney

T - Three sons

U - "Unite or Sink"

V = Vera Miles

W - "Whatever Happened To Ernie?"

X - X-Ray vision that one of Robbie's teachers appeared to have

Y - young Sudsy

Z - Zsa Zsa's pool Ernie fell into

A - Albert, Barbara's old boyfriend

B - Barbara

C - Cappy Angstrom

D = William Demarest

E - Ernestine Coulter

F = Fred MacMurray

G - George, a friend of Ernie's

H = Ham Radio Operator

I - Ina, one of Robbie's girlfriends in the b/w years, played by Tina Cole

J = Joan Tompkins as Lorraine Miller

K - "Katie's Career"

L = Livingston brothers

M = Meredith MacRae

N - "The New Vice-President"

O = Orville

P - "The Perfect Separation" from season 8

Q = Quiet family time at home

R - "Raft on the River"

S - Stanley Livingston

T - Tina Cole

U - A Horse for Uncle Charley

V - Vera Miles

W - Wm. O'Casey

X - Mr. X, spying on the Douglases

Y - Young Sudsy

Z - Zsa Zsa, guest star in season 8

A - Adjust or Bust

B = Bub

C = Chip, the Trapper

D = Douglas family

E = Ernie Report, The

F = Fred MacMurray

G = Good Influence

H - Halloween episode whee Chip was scared of the neighbor lady

I = Ireland trip

J - Jeff Alexander, who did a lot of the music

K - Off Key

L - Livingston boys

M - Mike's Brother

N - "The National Pastime"

O - Organization Woman

P - Pete Rugolo, who did some music in at least season 1

Q - Quiz Bowl: Chip & his classmates square off against their dads (Season 7).

R - Richard, Chip's real first name

S = Steven Douglas

T - Tina Cole

U - underfoot: With Ernie's dog Wilson underfoot in the Douglas kitchen, Charley falls and gets wet (Season 6).

V - Vera Miles, in the same season 6 episode--part of a three-part story arc where the Douglases adopt Ernie

W = William Frawley

X - Mr. X, mystery man who spied on the Douglases late in season 10

Y = You're Driving Me Crazy (season 8 episode)

Z - Zsa Zsa, whose pool Ernie fell into, in season 8

A - Anderson Family: In the series finale, the Anderson Family seeks the help of the Douglases as they suspect their son is doing drugs.

B - Bob Anderson, Steve's boss in California

C - Chip, the Trapper

D = Douglas family

E = Ernie

F - Frawley, William

G = Guest in the House (two episodes with this title: S4 E37 and S10 E19)

H = House where they all lived

I - "Instant Hate" (S2 Ep2)

Joan Vohs as Jan Dearing

K - kilt: Steve's cousin Fergus wore a kilt.

L - Livingston brothers

M = My Three Sons

N - No Christmas episode

O - obdurate: Charley is obdurate having decided to suspend Robbie from driving, after Robbie lets his girlfriend drive his car and she's ticketed for speeding (Season 6).

P - Par for the Course

Q = Quiet evenings at home with the family

R

R - Ricky, a kid Ernie wanted to have over in a later episode

S = Steve

T - Thanksgiving: The Douglas Family celebrates Thanksgiving in Season 1.

U - Uncle Charley

Directed by James V. Kern

W - William "Bub" O'Casey

X - eX-girlfriend Jean Pearson, played by Cynthia Pepper

Y - Yvonne Craig

Z - zany: Adoption officials encounter a zany Douglas home atmosphere when first checking to see Ernie's potential new family (Season 6).

A - Ayres, Lew -- as Dodie's grandfather whom the Douglases thought was a spy outside the house in a late season 10 episode

B = Barbara Harper Douglas

C = Chip

D = Dog, Tramp

E - Ernestine Coulter

F = Fred MacMurray

G - Grouchy Charley

H = Happy family

I - Ingram, Gail - a writer in season 6

J = Judy Doucette

K - Klunky, a favorite young Chip adj.

L = The Little Ragpicker

M - Rose Marie plays a babysitter for the triplets in season 9