Most of the marriages of 1913 of the Netherlands are online but I couldn't find the marriage between Franciscus Josephus Aartsen ( born 01-Feb-1888 Rotterdam ) and Lily.
On the familycard of his mother I saw that he left Rotterdam and went 04-Apr-1911 to Breda.
But he didn't get married in Breda either.
The next step could be , but unfortunaly not online, to see if there is a Familycard of Franciscus in Breda to see were he got married.
There is information online that he left Breda in 1918 and went to Glasgow until 1962, after that he came back to The Netherlands were he lived in Wageningen until 1965 and after that in Utrecht were he died 21-may-1967.
Are you sure 1913 isn't 1918 because in that case he maybe got married in Glasgow ?