A few others come to mind:

Django and Joseph Reinhardt
Adrian and Arthur Rollini
Conte and Pete Candoli
Woody and Jack Guthrie
Cannonball and Nat Adderley
Marian and Jimmy McPartland

And don't even get me started on country family acts. 

Cary Ginell

On Apr 6, 2013, at 4:22 AM, Art Shifrin <[log in to unmask]> wrote:

> Andrews: LaVerne, Maxene, Patty
> Armstrong: Lil & Louis
> Boswell: Connee & Martha & Vette
> Calloway: Blanche & Cab
> Crosby: Bing & Bob
> Deniz: Frank, Jose, Laurie
> Dorsey: Jimmy & Tommy
> Ellington: Duke, Edward Kennedy II, Mercedes, Merc
> Goodman: Benny & Harry
> Green: Jeff & Lew (the family's musical endeavors including the Green
> Brothers date to circa 1860)
> Henderson: Fletcher & Horace
> Mills: Donald, Harry, Herbert, John (Sr. & Jr.)
> Pizzarelli: Bucky & John
> Sinatras: both Franks
> Clio Lane & John Dankworth
> 
> I assume that there are more.
> 
> Art (Shiffy) Shifrin
>