I have no idea if there is a legitimate company named PSG Consultants (there may be) but I can guarantee that what your mother received is a scam. After Mom cashes it and wires the money somewhere, it will be discovered that the check was forged. The bank will require your mother to pay back all of the money.
NEVER wire money to someone you do not know. It is always a scam, no matter what they call it.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.