Green-carder

The man with the fighting cock on his shirt was a Union green-carder who did not wish to cross the picket lines.

Source: wiktionary

In theory, the green-carder is identical to any other resident immigrant; in fact, this is not the case.

Source: wiktionary

If a commuting citizen or green-carder becomes a resident, he and his resident dependents would become eligible for federal food stamps, state benefits to medical indigents, and county general assistance

Source: wiktionary