Charles J. Shields at his own website:
Mark Vonnegut has said that the father he knew growing up wasn’t a famous author. He was a family man, a struggling freelance writer, who couldn’t get a job teaching English at the local community community college. And that’s not to mention his father’s disasterous foray into selling SAAB automobiles on Cape Cod, either— another of Kurt’s attempts to make money.
For almost twenty years before the publication of Slaughterhouse-Five in 1969, Vonnegut was broke most of the time. (Someone claiming to be his newsboy told me he was somehow never around at the end of the month to pay for delivery.)
The poignancy of how success and the comfort of money eluded him year after year can be summed up in a tale, here told for the first time: Kurt Vonnegut’s idea for an atomic bowtie (alas, another anecdote that didn’t make final draft of his biography). In 1950, Vonnegut was sure that a bowtie polka-dotted with the symbol for nuclear energy would be a big seller and bring him money he so desperately needed to keep writing and supporting his family.
More here.