The Reti game is pretty famous. I don't know how well-known the other two are.
I've never heard of Mattison, but GM Bernstein is quite famous I think. I'm fairly certain he was a GM. He may have been a WC contender.
Edit: Oh wait, were you talking about the games?
Yes, I believe she was. I must say that I'd never encountered even the gave vs. Reti.
". . .were you talking about the games?"
Yes, of course.
Herman (Hermanis) Karl (Karlovich) Mattison (Matisons) was the first really strong Latvian player. He was born in 1894 and died in 1932 from tuberculosis at age 37. He was considered world champion material, but probably due to his short career, his name in mostly forgotten.
Here he outplays Rubinstein:
LOL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!