I think you must have a White with a Westinghouse motor -
Free/Westinghouse was the original company, and then they ended up with New Home, and then I think Standard ended up with them, and after Standard went out of business (Singer actually ended up with the company that had Standard) at some point Janome got the "New Home" name. I don't have all my notes here at work to refer to.
Westinghouse motors got put on a lot of machines, both as original and as replacement motors, so don't pay too much attention to the motor when searching for the manual.
A picture would be helpful - White made a lot of machines with other names, so there may be something else you could look for that would give you the information.