That is a fantastic list and I still listen to most of them and a few others you didn’t mention like King Crimsons Larks Tongue in Aspic. You could put a similar list together for 72 which still makes me believe that the early 70’s was the most productive, inventive and varied period in rock music.
1972, you say. This is what I've got:
David Bowie: The Rise And Fall Of Ziggy Stardust And The Spiders From Mars
The Rolling Stones: Exile On Main St.
Neil Young: Harvest
Lou Reed: Transformer
Yes: Close To The Edge
Deep Purple: Machine Head
Jethro Tull: Thick As A Brick
Genesis: Foxtrot
Big Star: #1 Record
Steely Dan: Can't Buy A Thrill
Deep Purple: Made In Japan
The Allman Brothers Band: Eat A Peach
Roxy Music: Roxy Music
T. Rex: The Slider
Black Sabbath: Vol 4
Santana: Caravanserai
Elton John: Honky Chateau
Aphrodite's Child: 666
J. J. Cale: Naturally
Eagles: Eagles
Jethro Tull: Living In The Past
Alice Cooper: School's Out
Blue Oyster Cult: Blue Oyster Cult
Rod Stewart: Never A Dull Moment
Rory Gallagher: Live In Europe
Carlos Santana / John McLaughlin: Love Devotion Surrender
The Sensational Alex Harvey Band: Framed
Argent: All Together Now
Joe Walsh: Barnstorm
T. Rex: Bolan Boogie
The Edgar Winter Group: They Only Come Out At Night
Edgar Winter's White Trash: Roadwork
ZZ Top: Rio Grande Mud
Emerson, Lake & Palmer: Trilogy
J. J. Cale: Really
Pete Townshend: Who Came First
The lists are based on albums that I own and I've only got two Crimson albums, one whose name we shan't mention and the obvious one. Also, they are extracted from an online resource so there's stuff from less popular acts that I would have included if I was trying to be thorough e.g. Angel.