The Flames.

From Wiki...
Kantner had three children; sons Gareth (a restauranteur) and Alexander
(a musician who sometimes played with Jefferson Starship),
and daughter China (a former MTV VJ and actress).

A political anarchist, Kantner once advocated the use of psychedelic drugs such as LSD
for mind expansion and spiritual growth,
He was also a prominent advocate of the legalization of marijuana.
In a 1986 interview, Kantner shared his thoughts about cocaine and alcohol, saying,
"Cocaine, particularly, is a bummer. It's a noxious drug that turns people into jerks.
And alcohol is probably the worst drug of all.
As you get older and accomplish more things in life in general,
you realize that drugs don't help, particularly if you abuse them."

When Kantner suffered a cerebral hemorrhage in 1980,
his attending physician at Cedars-Sinai, Stephen Levy, was quick to point out
it was not a drug-related issue, saying:
"There is zero relationship between Paul's illness and drugs. He doesn't use drugs."

Kantner died in San Francisco at the age of 74 on January 28, 2016.
From multiple organ failure and septic shock after he suffered a heart attack days earlier.

Shortly after Kantner's death, Grateful Dead drummer Mickey Hart reflected,
"He was kind of the backbone of that band.
It was always about Grace and Jack and Jorma (Kaukonen),
I don’t think he got the credit he deserved."
He died on the same day as Airplane co-founder Signe Toly Anderson.