Vladimir,
Your sword hanger and belt question is an interesting subject that I have spent some time on myself. Here are some basics: The Sam Browne belt was not worn by US Army Officers until it was allowed for wear during WWI in the European Theater. By regulation the earlier US sword belts, without a cross strap, were worn in the US and elsewhere, i.e. in The Philippines or other US possessions. When the US Army Officers returned to the US, they should have put their Sam Browne belts away and gone back to the US regulation belts without a cross strap. Also, leather, bullion, or cloth double strap hangers were in wear until they were largely superseded by the chain hanger. The Sam Brown belt was adopted by the US Army between the wars, which brings us up to your timeline.
The rig that the General Officer is wearing is the one you want for your circa 1943 impression. Bear in mind, that the wear of the US Model 1902 Army Officer Saber was suspended for the duration of the war by orders around 1942. There were some exceptions for Military Schools, ROTC, Honor Guards, etc. so it was still possible to wear the saber as late as 1943 so you are good to go.
Here are some examples along with the proper russet color sword knot for service wear.
"You can't please everyone, so you have to please yourself." Ricky Nelson
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