Hi Larry,
the notation clearly is of a much later date. As the naming and renaming of Wesermünde, Geestemünde, Lehe and Bremerhaven is quite complex, I wouldn´t give much for the correctness of the caption/inscription.
Actually, the Kaserne called Wesermünde-Bremerhaven was situated on the border of the harbour which belonged to Bremen and was still called Bremerhaven whereas the living quarters of the former Bremer Bremerhaven belonged to Prussia (Wesermünde) in exchange for territories bordering on the town of Bremen which doubled it´s size, among these cities and villages was Vegesack e.g.
But... anyway. Unless you compare the building structures carefully with reference material, wich is scarce, I wouldn´t want to say for sure where the photos were taken. All three barracks come from the mid thirities and look frustratingly similiar, at least the ones in Wsmd-Brhv and Wsmd-Lehe.
GreyC
Actually,
I am now quite certain it´s Wesermünde Lehe, the Barracks in Wsmd-Brhv did not, to my knowledge, have so much free space around it, on two sides the harbour, the others lined with civil housing.
Compare 3rd photo and 4th in particular. Not the pointed roof to the far right of the modern photo and the open space to the right.
https://www.google.de/search?q=Stadthaus+Bremerhaven&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjz3YaOh4nWAhVMZlAKHT3jCNsQ_AUIDCgD&biw=1440&bih=759&dpr=1.33#imgrc=Z2B4zSEbfPRDQM:
http://mapio.net/pic/p-17088206/
GreyC