At here the translations of the captions.
First caption
Euer Sohn L.
lächelt süss im
Sonnenschein
Burgsteinfurt
4.9.46
Your son L. smiles sweetly in the sunshine. Burgsteinfurt 4th of September 1946.
Second caption
Fredie
Auf dem Wege
nach St. Arnold
zum schönen
Bundesfreund
Fredie, . on the way to St. Arnold to the beautiful Federal Friend.
The writer of this text probably used to write in Sütterlin-script, which makes it difficult to read the ( "modern" )handwritten text. The first name Fredie is not common in Germany. It may be possible this translation of script and language has 1 or two minor errors. Bundesfreuns/Federal-Friend can mean anything in Germany. From Bismarck to USA. Ask Schiller!