be employed

References in classic literature ?
There would, in fact, be an insuperable difficulty in ascertaining when force could with propriety be employed.
It has rarely been attempted to be employed, but against the weaker members; and in most instances attempts to coerce the refractory and disobedient have been the signals of bloody wars, in which one half of the confederacy has displayed its banners against the other half.
It might appear, perhaps, the most logical course to devote our first meeting to the discussion of the engine to be employed.
a) the weekly amount that the worker would probably have been earning as a worker but for the injury and had the worker continued to be employed in the same or some comparable employment, and
I will still be employed and paid (and taxed at source accordingly) by my Swiss employer.