Sykes co-wrote "Is This Love," one of Whitesnake's biggest hits on the Billboard Hot 100, and more songs on the band's chart-topping, self-titled 1987 album.
The group celebrated 40 years as Grand Ole Opry members last year.
Farry, who worked in radio promotion and as a tour manager for Elliott Smith and the Lemonheads, died on Sunday (Jan. 12) of complications from lung disease.
The former Miss Oklahoma had two top 10 hits on the Billboard Hot 100 and was nominated for three Grammys.
Moore was best known as half of the Rock & Roll Hall of Fame soul duo behind "Soul Man" & "Hold On, I'm Coming."
The renowned artist began his career in 1963 and was known for timeless hits such as "Cómo Te Extraño Mi Amor."
Dolan, father of James L. Dolan, founded Home Box Office and Cablevision, and later bought Madison Square Garden and the New York Knicks.
"His life was a testament to resilience, creativity, and boundless love," his family said in a statement.
A jazz connoisseur, Parsons co-owned a Harlem jazz club and served as chairman of the Apollo Theater and the Jazz Foundation of America.
Saks won 13 Grammys -- eight for classical music and five for his work on Broadway cast albums.
