American Top 40 with Casey Kasem aired on radio from July 4, 1970 until August 6, 1988. This rebroadcast is one of many I have recorded from internet radio. Some are incomplete but most are not and I hope you enjoy these as much as I do.
In this very first broadcast (which uses the data for the week ending July 11th, 1970):

With artists like the Moody Blues (you can hear the pops in vinyl record Casey plays), Mountain, Rare Earth, Blood Sweat & Tears, the Carpenters, Bread, Three Dog Night, Blues Image, and the Beatles (who are still together), its a great countdown.

Wilson Pickett re-does an Archies song.
One vocal group in the countdown has had 32 hits in the last 9 years.
One song has been a hit four different times in 19 years.
Casey remembers the 200th birthday of a man who has a piece of music in this countdown.
Casey also celebrates the 70th birthday of the man who stopped the Beatles.
Although the Grateful Dead would not have their first top 40 hit until August 15th, 1987 ("Touch Of Grey" made it to number 9), "Teach Your Children" (at number 24) by Crosby, Stills, Nash & Young features Jerry Garcia of the Dead on pedal steel guitar.

40: End of Our Road - Marvin Gaye
39: Silver Bird - Mark Lindsey
38: Spill the Wine - Eric Burden & War
37: Go Back - Crabby Appleton
36: I Just Can't Help Believing - B.J. Thomas
35: Spirit in The Dark - Aretha Franklin
34: Mississippi - John Phillips
33: Westbound #9 - Flaming Ember
32: It's All In the Game - Four Tops
31: Save the Country - Fifth Dimension
30: Ohio - Crosby, Stills, Nash and Young
29: Everything Is Beautiful - Ray Stevens
28: Check Out Your Mind - Impressions
27: Question - Moody Blues
26: Signed, Sealed, Delivered - Stevie Wonder
25: Sugar, Sugar - Wilson Pickett
24: Teach Your Children - Crosby, Stills, Nash & Young
23: Which Way You Goin' Billy - The Poppy Family
22: Love On A Two-Way Street - Moments
21: Mississippi Queen - Mountain
20: Make It With You - Bread
19: Are You Ready - Pacific Gas & Electric
18: Love Land - Charles Wright & The Watts 103rd Street Rhythm Band
17: Tighter & Tighter - Alive And Kicking
16: My Baby Loves Lovin' - White Plains
15: A Song Of Joy - Miguel Rios
Oldie: Hello Dolly - Louis Armstrong
14: United We Stand - Brotherhood Of Man
13: Get Ready - Rare Earth
12: Ooh Child - Stairsteps
11: Gimme Dat Ding - The Pipkins
10: Hitchin' a Ride - Vanity Fair
Oldie: Spinning Wheel - Blood Sweat & Tears
9: The Wonder Of You - Elvis Presley
8: The Long And Winding Road - Beatles
7: Close To You - Carpenters
6: Lay Down (Candles In The Wind) - Melanie
5: Band of Gold - Freda Payne
4: Ride Captain Ride - Blues Image
3: Ball of Confusion - Temptations
2: The Love You Save - Jackson Five
Oldie: Satisfaction - Rolling Stones
1: Mama Told Me Not To Come - Three Dog Night