I have to confess, I don't know much of Sammi Smith outside of Help Me Make It Through the Night, but it was a great recording. Sad news. From CNN:

'Help Me Make It' singer dead
Sammi Smith was also part of 'Outlaw Movement'
Thursday, February 17, 2005 Posted: 12:21 PM EST (1721 GMT)

Sammi Smith's version of "Help Me Make It Through the Night" is considered one of the great country performances.

OKLAHOMA CITY, Oklahoma (AP) -- Country singer Jewel "Sammi" Smith, known for her trademark ballad, "Help Me Make It Through The Night," and a knack for sharing everyday life in her music, died Saturday. She was 61.
Smith died at home after a long-term illness; the Guardian West Funeral Home did not release further details.

Smith won a Grammy for best country vocal performance-female in 1971 for "Help Me Make It Through The Night," which was written by Kris Kristofferson.

Smith produced her first hit, "So Long Charlie Brown," in 1967. Six years later, she moved to Dallas, where she joined the "Outlaw Movement" with Willie Nelson and Waylon Jennings.

Smith also found time to celebrate her Apache heritage. She was a frequent visitor to an Apache reservation in Arizona, where she made pottery and jewelry.

other than itbeing a classic tune, i cat remember anything else she had done all n all damn shame.but shes free from pain now so,it all has its beauty n sadness.

R.I.P.

I never knew her music, but I read that her single was voted the best country single ever by some magazine.