Yes, there is a 719 page file from 9 February to 6 April 1945 here:
https://mcoepublic.blob.core.usgovcl...31_PartA-F.pdf
All these files are located on this page:
https://www.benning.army.mil/Library...ilm/index.html
Have you ever requested any CDs from AFHRA? CDs are $30 each:
https://www.afhra.af.mil/
They would have files on the 322nd BG and the 450th BS. It can be a little tricky to figure out exactly what to order but I am willing to do that if you have not done so. Sending the CDs overseas may also be problematic. Hopefully we can find a complete crew list for the April 11 mission and possibly also the citation for the DFC for Hopkins.