Although the contributions of St. Louis jazz musicians may not have been explicitly acknowledged by name at the 2017 Grammy Awards, the city was represented by players on at least a couple of this year's winning recordings.
Trumpeter Keyon Harrold(pictured, top left) presumably will be getting a Grammy statue for his crucial contributions to the Robert Glasper-produced soundtrack for Don Cheadle's film Miles Ahead, which was the winner in the "Best Compilation Soundtrack for Visual Media" category.
Also, his brother, drummer Emanuel Harrold, and bassist Jahmal Nichols, who's also from St. Louis, are the rhythm section for singer Gregory Porter, who won "Best Jazz Vocal Album" for his 2016 release Take Me To The Alley. Harrold performed on the Grammy-winning recording, and he and Nichols (pictured, center right) continue to tour around the world with Porter.
Finally, although there was no Grammy Award for "Best Stage Outfit Inspired By A 1970s Miles Davis Album Cover," if such an award existed, it surely would have gone to pop diva Beyonce, who (as you can see from the picture below) looked almost as if she stepped right out of the painting by artist Mati Klarwein that was used as the cover art for Davis' 1971 album Live-Evil. (Hat tip to @danieldurchholz for pointing out the resemblance.)
You can see a complete list of this year's Grammy Award winners here.