There are many ways for names (aka signatures) to get on a quilt. On some quilts all the names are done in the same method- i.e., all signed by hand by individuals or by a skilled signer, or stamped or stenciled, or inked and on other quilts there is a wide variety of methods. And on some quilts, all the methods are used.
Here is an 1840s signature album quilt from Delaware/PA in the "Grandmother's Pride" block with a wide variety of signing methods.
Delicious hand inked drawing
This one is stamped with letters arranged in the stamp center to spell out the names.
Another stamp but the name is hand drawn.
And yet another stamp.