Here is the link for the 2019 download. 2020 can be done online or with download through the TurboTax Website as well.
https://turbotax.intuit.com/personal-taxes/past-years-products/
You will need to visit the IRS website for obtain an ITIN for your child or the follow the steps you used to obtain an SSN. TurboTax does not provide that service.
