Since this is a family you are making a page for, and it is a role-play, first and foremost, I ask that you include an image.
Now, you mentioned in-game that you needed help with getting to know what to write. For inspiration, you can look at other family pages as well. For starters, you can talk about maybe the backstory behind them, maybe their businesses and accomplishments if any, etc.
Heya, The family name is Foote/Kane family its like a joint fmaily, i am the matriarchy i think it is called of the family and my father Doc Foote is the Founder of the family along with Seth Kane whom is my uncle, We are a yoworld family of many jobs such as doctors, dentists and many many more, seth kane is a none doctor and we hodl events