Yes, We Have No Havanas - S4-E1
Continuity mistake: At Fidel's funeral, Sophia talks about him awakening feelings that she had not felt in 35 years. But earlier in the episode, Dorothy said that her father/Sophia's husband has been dead for 27 years. Also earlier, Sophia claimed to have showered with a man 22 years ago.
Chosen answer: Rose's husband Charlie died making love to her. There are at least 3 different ways Blanche's husband George is said to have died: 1. Blanche was getting a pedicure when he was killed. 2. He had a car accident and died. 3. He had been in a coma and died. In theory they could all be combined (he had a car accident, fell into a coma, then died while she was having a pedicure), but that's conjecture. I'm not sure how Sophia's husband Sal died.
The episode where Blanche said her husband was in a car accident, she said she was on the phone with an officer (who was eating potato chips, crunch) who was at the scene of the accident, and the officer said George was hit head on and died.