Clancy Bouvier

Clancy Bouvier was the chain-smoking deceased husband of Jacqueline Bouvier, and father of Patty, Selma, and Marge Simpson. He is of French origin.

Traits in common with Patty and Selma.
Like Patty and Selma he agrees on many things with them, but is the only other member of the Bouvier family that harbors no hatred of Homer Simpson. Also like Patty and Selma he was a chain-smoker. This is probably how Patty and Selma took up smoking.

Jobs
It was revealed that he was one of the earliest male flight attendants, although he was ashamed of it, as he tries to tell Marge not to look at him when she sees him on the plain as a flight attendant, which resulted in her fear of flying. At some point he also served in the United States Navy where he picked up a swearing problem, which nearly cost him his job as a Baby Photographer. Shortly after Clancy got out of the Navy he got married in 1951 at age 21.

Dislike of Homer
Clancy first met Homer in 1974 when he showed up at the Bouvier home claiming to be Marge's prom date (who was actually Artie Ziff). He was kind and complimentary to Homer, saying that "from what she's told me I'm sure you're a solid citizen". Whether Marge had 'sugar coated' her description of Homer, or she had in fact been describing Artie, is unclear.

It is revealed later that his behavior may have just been common courtesy: When Marge returned home after the prom, she overheard her father stating that "when that Simpson boy showed up it took years off [his] life", to which her mother replied with, "Will you stop? She went with the good one" (referring to Artie).

Non Canon Deaths
The cause or time of his death is undetermined. In an issue of the comic Simpsons Illustrated, Lisa attributes his death to an accident involving a roller coaster, but whether this is canon is unclear. What is known is that his death occurred some time after Marge met Homer and before she married him. He got her a "white-noise machine" to help her deal with his death. Clancy dies in 1977 after and heart attack due to his chain smoking. . In one Treehouse of Horror episode he was eaten by King Homer at his and Marge's wedding.