Dirk,
MACR 11137 appears to be related to B-17 42-10741, lost on 30 Nov 1944 (Merseburg mission).
Instead try MACR 13025 for Creaseman and/or the (free) online MACRs on
https://www.archives.gov/research/mi...r-crew-reports
At first glance I did not have success yet with either 13024 or 13025, but perhaps others have more experience with that wesbite.
Regards,
Leendert