You want me to do your work for you? Sorry. If you want support for your own argument, you need to gather your own evidence
Kinda snotty of you, The fact is that you have little knowledge of how the real world acts in this area.
Most Universities have archeology as a sub diicipline(available as degree programs only in their GRAD schools)
Univ of Penn , for example, offers archeology as a discipline beginning with MS. , undergrad degrees that "prepare" one for further wrk include History, anthropology, architecture, ancient history or geography.
No one here denied that history and archeology are two disciplines but you seem to try to want to convince us that they are mutually exclusive and they are not.
As far as "archeohistorian" Ive never heard of such a title ,but Ive heard of "Historical ARcheologist" and "archeologist/Historian" as actual job titles in Federal site investigations, and you know how they like titles.
My point was that the two dsciplines are not exclusive and that Historians (of course they need field methods or relevant topic experience) are frequently defined as the ranking "Qualified person" who operates as Project Director or Project Manager of a site program. Your belief as to"Who writes what narrative" is not so in the world of contract services.