Double sided hits

I have an affinity for B-Side hits and I had compiled a
complete list based off research from Billboard and Joel
Whitburn books. However I just discovered something today
that I had never noticed before. I never realized that a
few of these entries don't have slashes. I always knew
that the Nutty Squirrels was two sided (but only because
the A and B sides charted separately). I was most stunned
to find out "American Pie" was double-sided.
But before you say "well duh", first take a look at these
hits are are all A-Sides...

A-Side ONLY hits:

Brand New Love Affair Part I & II BY Chicago
Dialogue (Part I & II) BY Chicago
Don't Say Goodnight (It's Time For Love) (Parts 1 & 2) BY
The Isley Brothers
For The Love Of You (Part 1&2) BY The Isley Brothers
It's A New Day (Part 1) & (Part 2) BY James Brown
The Killing Of Georgie (Part 1 And 11) BY Rod Stewart
***** I intentionally typed 11 (instead of II or 2)
because that's exactly how this appears on the 45. *****

Double-sided hits:

Slaughter On Tenth Avenue—Part I / Slaughter On Tenth
Avenue—Part II BY Ray Anthony
Beat Me Daddy (Eight To The Bar)—Part I / Beat Me Daddy
(Eight To The Bar)—Part II BY Will Bradley And His
Orchestra Featuring Ray McKinley
The Flying Saucer (Part 1) / The Flying Saucer (Part 2)
BY Buchanan and Goodman
Santa And The Satellite (Part I) / Santa And The
Satellite (Part II) BY Buchanan and Goodman
Better Place To Be (Part 1) / Better Place To Be (Part 2)
BY Harry Chapin
(How I Spent My Summer Vacation) Or A Day At The Beach
With Pedro And Man—Part 1 / (How I Spent My Summer
Vacation) Or A Day At The Beach With Pedro And Man—Part 2
BY Cheech & Chong
The Big Time Spender, Part 1 / The Big Time Spender, Part
2 BY Cornbread and Biscuits
A Crosby Christmas - Part 1 / A Crosby Christmas -
Concluded BY Gary, Phillip, Dennis, Lindsay And Bing
Crosby
Honky Tonk (Part 1) / Honky Tonk (Part 2) BY Bill Doggett
Let's Get Away From It All-Part 1 / Let's Get Away From
It All-Part 2 BY Tommy Dorsey and his Orchestra, Vocal
refrain by The Pied Pipers
Return To Paradise (Part 1) / Return To Paradise (Part 2)
BY Percy Faith
Open The Door, Richard! (Pt. 1) / Open The Door, Richard!
(Pt. 2) BY Dusty Fletcher
Christmas Dragnet (Part I) / Christmas Dragnet (Part II)
BY Stan Freberg with Daws Butler and Orchestra
What It Was, Was Football—Part I / What It Was, Was
Football—Part II BY Deacon Andy Griffith
Slaughter On Tenth Avenue—Part 1 / Slaughter On Tenth
Avenue—Part 2 BY Lennie Hayton and the M-G-M Studio
Orchestra
"I Am Love" / "I Am Love" Pt. II BY Jackson 5
The Astronaut - Part 1 / The Astronaut - Part 2 BY Jose
Jimenez
Saturday Night Fish Fry (Part I) / Saturday Night Fish
Fry-(Concluded) BY Louis Jordan and his Tympany Five,
Vocal Chorus by Louis Jordan and Ensemble
Superwoman / Superwoman Pt. II BY Lil' Mo Featuring
Fabolous
Blues In The Night (My Mama Done Tol' Me)—Part 1 / Blues
In The Night (My Mama Done Tol' Me)—Part 2 BY Jimmie
Lunceford And His Orchestra
American Pie — Part I / American Pie — Part II BY Don
McLean
Anvil Chorus—Part 1 / Anvil Chorus—Part 2 BY Glenn Miller
and his Orchestra
Uh! Oh! Part 1 / Uh! Oh! Part 2 BY The Nutty Squirrels
Concerto For Clarinet—Part 1 / Concerto For Clarinet—Part
2 BY Artie Shaw and his Orchestra
The Presidential Press Conference (Part 1) / The
Presidential Press Conference (Part 2) BY The Sickniks
It's In The Book—Part 1 / It's In The Book—Part 2 BY
Johnny Standley with Horace Heidt and His Musical Knights
The Shifting Whispering Sands—Part 1 / The Shifting
Whispering Sands—Part 2 BY Billy Vaughn with Orchestra
Clair de Lune—Part I / Clair de Lune—Part II BY Paul
Weston And His Orchestra

In the case of "Dialogue," the A-side is an edit of both parts (so that's why Part 1 wasn't on one side and Part 2 the
other).