Jean-Charles Houzeau de Lehaie was a Belgian astronomer and journalist. A French speaker, he moved to New Orleans after getting in trouble for his politics in Belgium.
In the U.S. he continued his journalistic, astronomical, and political pursuits. He was an abolitionist and joined with unionists in Texas before the American Civil War. In New Orleans he worked with Dr. Louis Charles Roudanez at the newspapers he founded in the 1860s.
Houzeau migrated to Jamaica in the postwar years. After a period here, he received reinstatement from an observatory in Brussels and returned to Europe to work. He came back to Texas for an astronomical event. He published stirring memoirs and other accounts of his adventures and contacts during his travels, as well as several works on astronomical subjects.
Wikipedia https://en.wikipedia.org/wiki/Jean-Charles_Houzeau
Address 1 Place Louise, Mons 7000, Belgium
Coordinates 50°27'8.832" N 3°56'37.809" E