The “D” in Dunham in the faux BC is made by a downward stroke to form the left side of the “D”, then a curl back through the downward stroke and sweeping right to make the bulge of the right side of the “D”. A completely different hand made the “D” on he supposed SS card. Perhaps Toots signed the one with the shaky hand? I suspect Toots was well involved in getting SS#s and HI issued fraudulent BCs for folks, for a fee of course.
There’s a program on my computer under accessories, called PAINT. With a very steady hand, the best you can do is use ‘brush’ and try to write the name...and that’s how it looks, after many practice tries.