People are always wondering exactly which are the rarest Northern/Rare Soul 45's, and there's been several lists published within various magazines and web-sites...so here's my stab at this...compiled along with the help of all the knowledgable soul fans World-wide on RareSoulForum.co.uk.
I've broken it down to the Top Known Rarities, the not quite as rare but still expensive, and the current/future spins which may well turn out to be super tough...if that all makes sense!?

"What no Frank Wilson?" I hear you cry...well, the Motown group of labels have been omitted from this list and bunched together on their own Rarest of The Rare page all of their own...take the link above...besides, there are a couple of Motown family 45's rarer than Frank Wilson!
People are always wondering exactly which are the rarest Northern/Rare Soul 45's, and there's been several lists published within various magazines and web-sites...so here's my stab at this...compiled along with the help of all the knowledgable soul fans World-wide on RareSoulForum.co.uk.
I've broken it down to the Top Known Rarities, the not quite as rare but still expensive, and the current/future spins which may well turn out to be super tough...if that all makes sense!?

"What no Frank Wilson?" I hear you cry...well, the Motown group of labels have been omitted from this list and bunched together on their own Rarest of The Rare page all of their own...take the link above...besides, there are a couple of Motown family 45's rarer than Frank Wilson!
The Rarest Of The Rare
Northern Soul 45s
homepage
The Motown group of labels super toughies!
useful check lists
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Anorak's Corner!
The Big Ones...in alpha label order!

The Yum Yums - Gonna Be A Big Thing - ABC 10697 (stock copy)
Honey & The Bees - Be Yourself - Academy
The Traditions - On Fire - Artco 102
Eddie Parker - I'm Gone - Awake 502
The HyTones - You Don't Even Know My Name - Bell 627
Bernie Williams - Ever Again - Bell 768 (stock copy)
Jimmy Andrews - Big City Playboy - Blue Jay 5003
Magnetics - Lady In Green - Bonnie 107374
Nolan Chance - Just Like The Weather - Bunky 161
Jimmy Delphs - Dancing A Hole In The World - Carla 1904 (WD)
Fred & Turbines - Bernadine - Cenco 111
Martha Starr - Sweet Temptation - Charay 35
The Soul Incorporated - My Proposal - Coconut Groove 4032
George Pepp - The Feeling Is Real - Coleman 80 (x2 label designs)
The Appointments - I Saw You There - De-Lite 520
The Dynamic Three - You Said Yeah - Del-Val 1004
Milton James - My Lonely Feeling - Dore 767
Little Johnny Hamilton - Keep On Movin' - Dore 760
The Topics - Have Your Fun - Dream 1
The Precisions - Sugar Ain't Sweet - Drew 1002
Larry Clinton - She's Wanted In Three States - Dynamo 300 (stock copy)
Jimmy Burns - I Really Love You - Erica 2
Damon Fox - Packin' Up - Fairmount 1021
The Antellects - Love Slave - Flodavieur 804
The Tranells - Blessed With A Love - Flo-Jo 101
Cody Black - It's Our Time To Fall In Love - G.I.G. 102
Margaret Little - Love Finds A Way - Genebro 230
Al Scott - What Happened To Yesterday - Genuine 150
Mr Soul - What Happened To Yesterday - Genuine 150
Little John - Just Wait And See - Go Gate 2
Primers - How DoesThat Grab You - Hale 101
Kell Osbourne - Law Against A Heartbreaker - Highland 1182
The Moments - Baby I Want You - Hog 1000
Dennis Edwards- Johnny On The Spot - International Soulville 100
Jesse Davis - There's Room For Me - Jaboth 1
Bobby James - I Really Love You - Karol 3727
Tim Carr - Workin' - Kee 001
The C.O.D.s - She's Fire - Kellmac 1010
The Combinations - What You Gonna Do - Kellmac 1011
The Combinations - I Gonna Make You Love Me - Kimtone 1001 (x2 label designs)
Junior McCants - Try Me For Your New Love - King 6106
The Inmates - This Is The Day - Kopit 127
Walter & The Admerations - Man Oh Man - La Cindy 32769
Lynn Terry - I Got A Good Thing Going - La Salle 70
Little Willie Faulk - Look Into My Heart - M&H 2917
Norma Jenkins & The Dolls - The Aeroplane Song - Maltese 107 (WD)
Sandi Golden - You're My Everything - Masterpiece 201
The Mello Souls - We Can Make It - Mello
June Jackson - You're Welcome - Musette 112
The NuRons - All Of My Life - NuRon 101
Billy Wisdom - Handwriting On The Wall - Out A Site 11 (stock/test press)
The Four Dynamics - Things That A Lady Ain't Supposed To Do - Peachtree 129
Terri Goodnight - They Didn`t Know - Phelelectron 701
Ernestine Eady - Let's Talk It Over - Phil La of Soul 302
William Powell - Heartache Souvenirs - Powerhouse 101
The Del Larks - Job Opening - Queen City 2004 (demo)
The New Wanderers - Let Me Render My Service To You - Ready 1001
Jesse Davis - There's Room For Me - Revere 101 (pic cover+WD)
Ty Karim - You Just Don't Know - Romark 113
The Butlers with Frankie Beverley - Because Of My Heart - Rouser 1017
The Magnetics - When I'm With My Baby - Sable 101 (WD)
Lee McKinney - I'll Keep Holding On - Sable 104
Mamie P.Galore - No Right To Cry - Sack 7128
Tina Roberts - One Way Or The Other - Security 1366
Don Gardner - Cheatin' Kind - Sedgrick 3001
Patrinell Staten - Little Love Affair - Sepia 8201
Baby Huey & The Babysitters - Just Being Careful - Shann 73924
J .D.Bryant - I Won't Be Coming Back - Shrine 108
The Counts - Peaches Baby - Shrine 117
The Prophets - If I Had One Gold Piece- Shrine 116
Ted Wilson - I Can't Take No More - Sierra 267
Gene Toones - What More Do You Want - Simco 6664 (stock copy)
Magic-Tones - It's Better To Love - Solid Hit 108
The Young Bros - What's Your Name- Soul Power 21267 (two mixes)
The Hy Tones - You Don't Even Know My Name - Southern Artists 2023
Barbara Acklin - I'm Not Mad Anymore - Special Agent 203
Mr.Lucky - I Was Born To Love You - Stardom
The Deltours - Sweet And Lovely - Starville 1206
Herman Lewis - Who's Kissing You Tonite - Stone Blue 101 (WD)
Billy Woods - Let Me Make You Happy - Sussex 213
Len Jewell - Bettin' On Love - Teri De 004
Jimmy Gresham - This Feeling I Have - Teri De 005
E.Williams - Trade My Soul For The Devil - Tide
Little Stanley - Out Of Sight Loving - Vance 00111
Two Plus Two - Look Around - Velgo 103
The Springers - Nothing's Too Good For My Baby - Wales 428
The Ivorys - Please Stay - Wand 1152
Walter Wilson - Love Keeps Me Crying - Wand 1153
Billy Hines - Ling Ting Tong - Watusi 101
Esther Grant - Let's Make The Most Out Of Love - Wilstone 001
The Classics - So Glad That I Found You - Yan-G 4665


The not quite as rare as the above list!
The Vondells - Hey Girl You've Changed - Airtown Custom 12
Johnny Rogers - Make A Change - Amon 4619
James Wesley Smith - Talkin' 'bout Women - Angel Town 714
Eddy Hughes - Soul Searcher - Bard 1014
Eddie Whitehead - Just Your Fool - Blackjack 711
Buddy Smith - When You Lose The One You Love - Brute 002
The Empires - You're On Top Girl - Candi 1033
The Turbines - We Got To Start Over - Cenco 116
Romona Collins - You've Been Cheating - Clarks 346
Anthony & Delsonics - Everytime - Emerge 1106
The Lovers - Without A Doubt - Frantic 2133 (WD)
Chuck Holiday - Just Can't Trust Nobody - Gloria 112
The Poets - Wrapped Around Your Finger - J.2. 1302
The Changing Scene - When The City Sleeps - JoVeeJo 5192
Robby Lawson - Burning Sensation - Kyser 2122
Lester Tipton -This Won't Change - La Beat 6607
Ernest Mosely - Stubborn heart - La Cindy 225 (WD)
The Antiques - Go For Yourself - La Salle 0069
The Utopias - Girls Are Against Me - La Salle 0072
Timmie Williams - Competition - Mala 515
Devotions - Do Do De Dip - Nation 61165
The Oracles - I Ain't Got Time - O.M. 1967
The TSU Toronados - A Thousand Wonders - Ovide 223
Jackie Day - Naughty Boy - Phelectron 382
Imperial C's - Someone Tell Her - Phil L.A. of Soul
The Magnetics - I Have A Girl - Ra Sel 7104
Nelson Sanders - Mojo Man -  Rambler 3001
The Stunners - Nobody But Me - Renfro 120
Hayes Cotton - Black Wings Have My Angel - Resist 504
Eric Mercury & The Soul Searchers - Lonely Girl - Sac 001
Shirley Edwards - Dream My Heart - Shrine 110
The Jokers - Soul Sound - SkoField 23
The Masquaders - That's The Same Thing - Soultown 201
Ray Agee - I'm Losing Again - Soul Town 104
Yvonne Daniels - I Don't Wanna Get Away From Your Love - Sterling 101
Lou Pride - I`m Com'un Home In The Morn 'un - Suemi 4567
John & The Weirdest - Can't Get Over Those Memories - No Time  - Tie 101
Johnny Honeycutt - I'm Coming Over - Triode 111
Royal Robins - Somethin' About You That Sends Me - Tru-Glo-Town 506
Clara Hardy - I Dream Of You - Tuna 010
Melvin Davis - Find A Quiet Place  Wheel City
Freddie Butler - Save Your Love For Me - Wheelsville 10001


The Worth Mentioning/Future Rarities?!
The Celebraties - I Choose You - Boss 503
Pic & Bill - What Does It Take - Charay
The Blendells - You Need Love - Dontee 101
The Dreamettes - Thats Not Love - Dream Maker
Hank Hodge - Eye For An Eye - Eye 503
Extremes - How I Need Your Love - 4 Jay 41514
Joan Dovalle - Holiday - Hot 101
Jesse Davis - So Full Of Love - Jaboth 101
The Del Larks - Out Of The InCrowd - Jet 101
Little Ron & The Esquires - I Found Someone - ?
Arthur Willis - The Hurting Is Over - Mars La Tour
Robert Tanner - Sweet Memories - Megatone 113
Joey Delorenzo - Wake Up To The Sunshine Girl - MiVal 101
Marilyn Barbarin - Just A Teenager - Nola 741
Ward Burton - Sweet Temptation - Panther 5
Gerri Shivers - Lets Try It Again - Pat
The Locations - Mr.Diamond Man - Ron Paul 101
Byron - I Just Want You - Sidra 10084

Additions welcome!