Yes, although by the 1960s when he was working on the Saturn project, Wehrner von Braun may have regarded himself as a first-generation American, having emigrated there in 1946.
But still German when working on some of his earlier rockets......
When his biopic was made (early 60s?), I fondly recall a graffito on an advert for it in IIRC, Oxford Circus Tube Station.
Under the film's title "I Aim at the Stars" was scrawled ".... but sometimes I hit London!"