Or. Rev. Stat. § 130.115
Unless otherwise represented, a minor, financially incapable individual or unborn individual, or a person whose identity or location is unknown and not reasonably ascertainable, may be represented by and bound by another person having a substantially identical interest with respect to the particular question or dispute, but only to the extent there is no conflict of interest between the representative and the person represented.
[2005 c.348 §19]