Didn't know that, so checked it out. The first one she divorced after 3 years. The second one died after 12 years of marriage, and she remarried a third time in 1980, 2 years after the last one passed. This one's lasted the longest.
RE: Short life spans of her earlier husbands....
If one of them crosses her, she goes to the garage and gets out a special shiny golden shovel for some groundbreaking of another final resting place. Paid for my huge insurance policies.
Oh, sorry, that was an Alfred Hitchcock TV episode. Sorry, Diane.