What was Genendal’s real name?

In the naturalisation papers of Morris Philip Greengross, he states that his mother’s name was Genendal Gringross nee Fisher.

However, in the naturalisation papers of Cissie Greengross she states that her mother’s name was Scheindla also known as Jennie Greengrass nee Seltz.

In the 1911 census her given name is Janie Greengross.

So what was her real name?