Populating multiple MCs with instances of same Symbol from Library

Say I’ve got something like this:

var parcher0:_parcher0 = new _parcher0();

_parcher0 is a Symbol in the Library with the Class definition _parcher0

I want to addChild this Symbol to an MC on the stage like this:

this.pccard0.sprite_.addChild(parcher0)

All good! Except I want to do the same thing, the same way, with this.pccard1.sprite_, and several more. When I do so, parcher0 only shows up on the final, most recently assigned addChild().

What gives? Is it forbidden to add a Symbol in this way in more than one place, and if so how do I get around it without creating a raft of arbitrary duplicates?