When the same or substantially similar evidence is material to the matter in issue with respect to more than one individual, the same time and place for considering all such appeals may be fixed, hearings thereon jointly conducted, a single record of the proceedings made, and evidence introduced with respect to one proceeding considered as introduced in the others, provided no party is prejudiced thereby.
[6:129:1937; renumbered 6.11:129:1937 and A 1951, 348]