As used in this act, the following words shall have the meaning respectively ascribed to them herein:

(a) “Migrant worker” means any person who is a nonresident of Kansas and who is employed temporarily in agriculturally-related work involving seasonal labor requiring his migration from one area to another in order to gain employment but shall not mean any person who is employed by any custom combine operator.

(b) “Crew chief” means any person, other than an employer, who brings a crew or group of migrant workers into the state of Kansas or is responsible for finding employment for them but shall not mean any custom combine operator.