It’s her, not him. His Chinese name is Lin Zhen.
However, there is no record showing that Aixinjueluo Yuzhen was a calligrapher. He went to Yan'an at the age of 19. After liberation, he worked in petroleum, attended a petroleum academy, and became a Buddhist in his later years. Husband Xie Boxian is not a celebrity either.
Of course, it cannot be ruled out that in recent years, some people have changed their names to Aixinjueluo, writing a few calligraphy and painting strokes to make ends meet. There are many such people, and that is another "Aixinjueluo" Luo Yuzhen".