Filling in missing values

[melm0]

Hi all,

I'm working with a normalized JSON file and I'm trying to clean the data a bit.
I need to backwards fill the missing values for the name column. I'm trying different things, including the isnull() function with method=bfill and nothing seems to work. It leaves me wondering if it is because it's not a NaN, but instead has nothing listed. I'm new to python so maybe the answer is obvious, but I could use some help!
Since this is my first post unfortunately I can't provide a link to the screenshot or add an attachment.