How do I make the text info on 1st sheet copy onto the other worksheets? in same cell?

I created a Log Book, for the trainees to use for tracking their hours. I was able to figure out the formulas I needed, and even the ones for the final page that accumulates info from all the other worksheets for their grand totals at the end of the year. But I can't figure out how to make it so that when they type their name on the 1st sheet, it populates that to all the other worksheets so they don't have to keep retyping it. Yes, I am still new to Excel, I have worked with it for a few years now, but I have never had to create anything. This is my first time start to finish. I am using MS 10 at work. I would greatly appreciate any assistance with this.

Thank you

It's not working for me,maybe I'm typing it wrong but I only changed the sheet title and cell, so i typed in =IF(Week1!E2=" "," ",Week1!E2) but it's not working, I typed it in cell E2 on Week2 and Week3, before I tested and it does not hide it stays visable in the cell.

Thank you Tony for trying to help also, i typed it exactly, then i copy and pasted what you typed, it isn't working, i'm feeling very inept right now, and it's time to go home so i'll pick it up again once i get home. and just keep trying.