1. Jo Stafford, marvelous singer of standards ("Wheel of Fortune") and apparently a fairly smart cookie to boot. That rich, warm, clear voice -- trust me, your warbling waifs of the current era will not sound remotely this good 50 years hence.
2. Estelle Getty, the first of our beloved Golden Girls to check out -- ironically, the second-youngest cast member (those were indeed some prosthetics, and yes Getty was younger than Bea Arthur). She was a pretty smart cookie herself; according to the LAT obit linked above, her insight into what makes senior women tick was fantastic:
Getty, a natural comedienne famous for her one-liners even in private life, played Sophia for laughs, but she also brought depth to the character. It was her idea that Sophia would always carry a purse because, she said, older women are forced to shed so many possessions in their later years that everything they own ends up in their purses.
"Nobody puts down their life very easily," she explained in a 1992 interview with Newsday.
Not wrong, she.
(ETA: ...3, Last Lecturer Randy Pausch. And also my great-uncle Herb, but that's a more localized mourning I suppose. Though as a WWII vet he loved Jo Stafford, and he could have been one of those gentlemen callers on Golden Girls... Hell of a life. I will miss him.)