Everyone whose legal right has been infringed may become the plaintiff in an action for the redress of such injury. Formerly rights of action, with a few exceptions such as negotiable instruments, could not be assigned so as to enable the assignee to sue thereon, at least in his own name. The law is now much more liberal in this respect.2

Persons, not parties, for whose benefit a contract is made and who sustain a relation of privity to the subject or the consideration may sue upon it.

In matters of agency, it is now well established that an undisclosed principal may generally sue in his own name, on a contract made in the name of the agent while acting within the scope of his agency.3

1 Andrews' American Law page 1097, 1st Ed. 2 Consult codes and statutes of particular states. 3 Andrews Stephens' Pleading. Sec. 22.