Did you know that the term "maverick" was an eponym, based on a family name? I didn't. NYTimes says:
In the 1800s, Samuel Augustus Maverick went to Texas and became known for not branding his cattle. He was more interested in keeping track of the land he owned than the livestock on it, Ms. Maverick said; unbranded cattle, then, were called “Maverick’s.” The name came to mean anyone who didn’t bear another’s brand.
Sam Maverick’s grandson, Fontaine Maury Maverick, was a two-term congressman and a mayor of San Antonio who lost his mayoral re-election bid when conservatives labeled him a Communist. He served in the Roosevelt administration on the Smaller War Plants Corporation and is best known for another coinage. He came up with the term “gobbledygook” in frustration at the convoluted language of bureaucrats.