^
auntiehill thought it up for my Christmas name.

Who said anything about the Doctors steerin'?
I'm talkin' abou the Tardis itself takin' the Doctors where they needed to be at that certain time.
auntiehill thought it up for my Christmas name.

^ That is a lovely idea, HoHoHod0, but it makes more sense that to think the early Doctors were brought there. The Tardis for the First and Second Doctors had faulty navigational circuitry, so they couldn't have steered to Gallifrey without help.
Who said anything about the Doctors steerin'?
I'm talkin' abou the Tardis itself takin' the Doctors where they needed to be at that certain time.