Was Karl Neureuther a National Socialist Party Member?

[Felix C]

Karl Neureuther, 1886-1975. Kaiserliche Marine crew 1906.
Out of service 1919
reentered service 1930 I think. At least by this year.
Kapitän zur See 1940

I ask because I am reading a book from 1934 and in the forward he touts National Socialism.
He was part of the Munich U-Boat Comrade Assoc.

[Andreas Schulz]

00.01.1923 Eintritt in die NSDAP
01.10.1931 Wiedereintritt in die NSDAP (Mitgliedsnr. 637.279)

Andreas

[Felix C]

Thanks