John Marshall Harlan,
Whitney v. Fox — Opinion of the Court
“ Among those who are disqualified by the statutes of Utah from being witnesses are 'parties or assignors of parties to an action or proceeding, or persons in whose behalf an action or proceeding is prosecuted, against an executor or administrator upon a claim or demand against the estate of a deceased person, as to any matter of fact occurring before the death of such deceased person, and equally within the knowledge of both the witness and the deceased person.' 2 Comp. ”
