Specifically in dignified positions, or some other dissonant career:
Boutros Boutros-Ghali (Secretary-General of the UN)
Ford Madox Ford (author)
Learned Hand (judge, US Second Circuit Court of Appeals)
Gibbs McAdoo (senator and US Secretary of the Treasury)
Melvin Purvis (FBI agent)
McGeorge Bundy (National Security Advisor to Kennedy and Johnson)
In fairness, her real name was Claudia Taylor. “Lady Bird” was an affectionate nickname.
Back in 1980, Ted Kennedy’s campaign manager for the New Hampshire primary was a woman named Dudley Dudley. Seriously, her first name was Dudley (I think it had been her mother’s maiden name), and she later married a guy whose last name was Dudley.
And, staying with the subject of Texas politicians who had family members with funny names…
A century ago, the governor of Texas was a populist named Jim Hogg. And he named his daughter Ima. I’ve heard that Ima was a very common name for girls in the South, that year, as there’d been a popular poem featuring a heroine named Ima.
There are legends that Ima Hogg had a sister named Ura, but that’s not true!
Lest you feel sorry for her, Ima Hogg had a long, happy life, and was a well respected philanthropist. There are schools, libraries, museums and concert halls all over the state named after her.