Welcome to this thread, @MollyHenshaw.
You can move each transaction to the correct contractor if these are created as checks or expenses. However, if these are all paychecks, you'll have to re-enter them one by one.
I'm also adding help articles that you can use in the future. Read through:
- 1099 Setup. It has a complete guide and quick video tutorial that will help you learn about creating 1099 for your contractors.
- Common questions about 1099s. It contains knowledge-based articles that can answer your frequently asked questions about form 1099-MISC in QuickBooks Online.
I'm always around here to help you if you have more questions about QuickBooks. Have a good one.