It's fun to look around and read on Needlebar - After Free took control of New Home, they basically convered the name to a "badge" and put all the info on machine that are identical to Free - they did not continute to make machines under the New Home design. However, it appears that after Natioanl was included, they took National machiens and put the New Home name on them - so those ones take shuttles the same as National machines, and not Free.
One clue - if they have a wide slide plate, it's more likely they take a Singer shuttle, if narrow, then if they are newer machines, it's likely to be National. Figuring out vintage machines gets real confusing after companies started consolidating and buying each other out.