Try reaching out to the 1/50’s website https://www.ichiban1.org/html/history.htm
My great uncle was killed in the battle of Tam Quan while serving with the 1/50th. A local journalist took a lot of pictures and letters from my grandma (his sister) and never returned them. The guys that still run the website have been phenomenal. I reached out asking if anyone knew my uncle and if they could provide any pictures of him to replace the ones that were lost. They got in contact with me almost immediately and were able to get about half a dozen pictures of my great uncle so I could give them to my grandmother. If anyone would have an eyewitness account or know someone who might it would be them. On their website is a contact page that has email addresses from those still in contact. Hope this helps!
Thank you so much!
Thank you so much!