She was born Adelaide Gail Sloatman as daughter of John Sloatman, who also appears on the cover of We're Only In It For The Money. Her sister is Lala Sloatman and her brothers Arthur "Midget" Sloatman and Jay Sloatman.
Gail worked at the Whisky a Go-Go and The Trip for Elmer Valentine. She was Bobby Jameson's girlfriend at the time. Pamela Zarubica introduced her to Zappa in 1966. Gail and Frank married in 1967. She ran Zappa's business procedures, especially after he passed away. One of her occupations were Zappa's mail-order operations, including Barfko-Swill.
She can be heard as a guest vocalist during "The Torture Never Stops" from the album Zoot Allures (1976) and provided photo's for the Zappa In New York album, as well as the inside photo on Sheik Yerbouti. Gail was also executive producer of Frank Zappa Plays The Music Of Frank Zappa and most of his posthumous albums.
References to her in Zappa's work
Zappa nicknamed her as his Pumpkin on the sleeve of Absolutely Free (1967). He referenced her again under the same nickname on the star map on the back cover of One Size Fits All (1975). Barking Pumpkin Records was also named after Gail's smoker's cough as she tried to quit the habit.
She can also be seen on the cover of We're Only In It For The Money (1968), visibly pregnant.
Mentions in interviews
She is mentioned in Bobby Zappa's article My Brother Is an Italian Mother (Jazz & Pop, 1968). The articles Rock Wives, Just Plain Folks, Not Just In It For The Money, Thing-Fish Rap are largely about her.
Howard Stern interviewed her in Gail Zappa Speaks With Howard Stern.
Gail recorded "American Sweethearts" (Living Legend LL722) as "Bunny and Bear" with Kim Fowley. She performed vocals on Dweezil Zappa's Havin' A Bad Day and on Gene Simmons' track Black Tongue from his solo album "Asshole" (2004).
She also appeared in Mondo Hollywood with Bobby Jameson and in Video From Hell as well as the documentaries Frank Zappa (1971 Documentary), The True Story Of 200 Motels and Derailroaded - Inside The Mind Of Larry "Wild Man" Fischer.
In popular culture
"I thought that he was probably one of the grubbiest creatures I'd ever seen, but he was compelling. He had a compelling glare. He had major magnetic charm, I would say." - Gail, quoted from Just Plain Folks, May 1990, interview by Drew Wheeler.