|Clark Gable (1901 - 1960)
Mr. Carole Lombard (widowed)
Father of Judy Lewis
|Dance, Fools, Dance (1931) [Jake Luva]: Shot in the chest in a shoot-out with William Bakewell in Clark's hideout.
A Free Soul (1931) [Ace Wilfong]: Shot in the chest by Leslie Howard in Clark's office.
Night Nurse (1931) [Nick the Chauffeur]: Shot to death (off-screen) by his cohorts; his death is mentioned in a conversation between a policeman and the ambulance driver. (Thanks to Kris)
The White Sister (1933) [Giovanni Severi]: Shot by German soldiers; he dies in Helen Hayes' arms shortly afterwards.
Manhattan Melodrama (1934) [Edward J. 'Blackie' Gallagher]: Executed (though I don't know the exact method). (Thanks to Tracey)
Parnell (1937) [Charles Stewart Parnell]: Dies of an unspecified illness, with his fiancee Myrna Loy by his bedside. (This movie is noted for its historical inaccuracy; although Parnell did die of natural causes at a young age, he had already been married for a year at the time of his death.) (I haven't seen this, but have read the summary in the book The Fifty Worst Films of All Time.)
Run Silent, Run Deep (1958) [Commander 'Rich' Richardson]: Dies following a concussion after his submarine is hit by depth charges. (Thanks to Francisco)