Question: The songwriter who co-wrote a notably hit song along with Taffy Nivert and John Denver was born in which year?

Context articles: Take Me Home, Country Roads
John Denver and the Muppets: A Christmas Together
Fire (Ohio Players song)
Bill Danoff
Leaving on a Jet Plane
Sweet Surrender (John Denver song)
Sunshine (TV series)
The John Denver Band
Taffy Nivert
Back Home Again (song)

"Take Me Home, Country Roads" is a song written by Bill Danoff, Taffy Nivert and John Denver.
John Denver and the Muppets: A Christmas Together is a 1979 Christmas television special starring Jim Henson's Muppets and singer/songwriter John Denver.
 The special first aired December 5, 1979 on ABC.
 The special has never been released in any standard home media video format and there are currently no plans to release it.
"Fire" is a hit song by R&B/funk band Ohio Players.
 The song was the opening track from the album of the same name and hit #1 on both the "Billboard" Hot 100 (where it was succeeded by Linda Ronstadt's "You're No Good") and the Hot Soul Singles chart in early 1975.
 It spent five weeks atop the soul chart.
 "Fire" was the Ohio Players' only entry on the new disco/dance chart, where it peaked at #10.
 The tune is considered to be the band's signature song along with "Love Rollercoaster."
William T. "Bill" Danoff (May 7, 1946 - ) is an American songwriter and singer.
 His best-known song is "Afternoon Delight", which he wrote and performed as a member of the Starland Vocal Band.
 As a songwriter, he also wrote or co-wrote hits for John Denver (notably "Take Me Home, Country Roads").
"Leaving on a Jet Plane" is a song written by John Denver in 1966 and most famously recorded by Peter, Paul and Mary.
 The original title of the song was "Babe, I Hate to Go", as featured on his 1966 studio album "John Denver Sings", but Denver's then producer Milt Okun convinced him to change the title.
 Peter, Paul and Mary recorded the song for their 1967 "Album 1700" but only released it as a single in 1969.
"Sweet Surrender" is the title of a popular song by the American singer-songwriter John Denver.
 It was originally recorded for his 1974 album "Back Home Again", but was chosen as the lead single from the concert album "An Evening with John Denver".
 "Sweet Surrender" reached #13 on the "Billboard" Hot 100 chart in February 1975, remaining in the Top 40 for eight weeks.
 It also rose to #1 on the adult contemporary chart, Denver's fourth song to reach the top on this survey (following "Sunshine on My Shoulders", "Annie's Song" and "Back Home Again").
 Following a theme common to many of Denver's songs, the lyrics to "Sweet Surrender" deal with a journey of self-exploration tied to themes of nature and environment.
 The single version of "Sweet Surrender" has yet to appear on any compact disc or digital reissue, characterized by its lack of applause over the introduction.
Sunshine is a 1975 American television comedy-drama series starring Cliff DeYoung and Elizabeth Cheshire, about a hippie musician raising his young daughter alone after the death of his wife.
 The series was based on the 1973 made-for-TV movie "Sunshine" and DeYoung, Bill Mumy, Corey Fischer, and Meg Foster all reprised their roles from the film.
 The series originally ran for 13 episodes on NBC in the spring of 1975.
 The show's opening theme was John Denver's hit song "Sunshine on My Shoulders."
The John Denver Band (a.k.a.
 The John Denver Experience) was a country-folk band active in the 1960s through the 1990s.
 Based out of Aspen, Colorado and led by guitarist-singer/songwriter John Denver, the band renditioned some of the most popular folk, country, rock and pop songs of the era.
Mary Catherine "Taffy" Nivert Danoff (born October 25, 1944, Washington, D.C.) is an American songwriter and singer.
 She is best known for being a member of the Starland Vocal Band.
"Back Home Again" is the title of a popular song written and performed by the American singer-songwriter John Denver.
 Released as a single from his album of the same name in 1974, "Back Home Again" peaked at number five on the "Billboard" Hot 100 chart in November of that year; it was Denver's fifth Top 10 hit on the pop chart.
 "Back Home Again" topped the adult contemporary chart for two weeks.
 The single was the first of three number ones on the country music chart where it stayed for a single week.
 The single was certified a gold record by the RIAA.
 The song won a CMA Award for Denver in 1975 in the category "Song of the Year"; he was also named "Entertainer of the Year" at the same ceremony, prompting country pop singer Charlie Rich to light the envelope on fire after reading that Denver had won—in an apparent insult to Denver's musical style and image.