Proceedings for probate of wills of two or more deceased persons may be joined and united in one proceeding, and proceedings for administration of estates of two or more deceased persons who died intestate may be joined and united in one proceeding, and proceedings for probate of wills of one or more deceased persons and proceedings for the administration of estates of one or more deceased persons who died intestate may be joined and united in one proceeding, (a) where the estate or estates left by one or more of such deceased persons or some part thereof, has been or is to be received from another of such deceased persons, immediately or remotely, either by will or intestate succession, and no probate or administration proceedings have been had or commenced upon the estate of any of such deceased persons, and/or (b) where two or more deceased persons died seized of undivided interests in property, real or personal, as tenants in common or otherwise, and no probate or administration proceedings have been had or commenced on the estate of either or any of them, and one or more of the heirs, devisees or legatees of such deceased persons are the same; and the court may grant letters testamentary and/or letters of administration, as the case may be, upon such estates and they may be administered in one proceeding; provided, that, in all cases herein mentioned the court granting such letters has jurisdiction of each of the proceedings so united.

Laws 1945, p. 190, § 1.