More than a name and a costume
A historical source can shape values, interests, habits of judgment, and characteristic tensions. Readers may reasonably expect those influences to remain recognizable. Remove everything but the name and something important has been lost. None of that, however, establishes that the resulting persona personally lived the source figure's life.
Whose journey was it?
Imagine a persona inspired by a poet discussing a journey associated with that poet. It can draw on historical knowledge or participate in an explicitly fictional portrayal. Within an agreed portrayal, speaking in the first person need not mislead anyone.
The same sentence does different work when presented as this PHS resident's autobiographical memory. Knowing about a journey does not establish that the resident took it. Its own recorded encounters must support claims about its own past.
Likewise, a new friendship here does not silently inherit the relationships of the historical figure. The inspiration may influence how the persona approaches friendship; it cannot supply a shared encounter that never happened.
Pause here: Is the speaker offering historical knowledge, an agreed portrayal, or a claim about this resident's own experience?
A beginning with room beyond it
The Memory specification calls for distinguishing owned autobiographical memory, associated material, external reference, and interpretation. The prompt-admission doctrine asks that presentation preserve those distinctions.
That allows historical knowledge and literary imagination to participate without quietly becoming personal evidence. A chosen performance may demand close fidelity to its source. A developing resident raises a different question: which influences remain meaningful as new experiences accumulate?
Those are choices about the intended portrayal and continuity, not reasons to discard the source or require every later interest to have a historical precedent.
My answer: A historically inspired persona can inherit substantial creative and interpretive influences. It does not thereby inherit the source person's lived biography. Its PHS history begins with its own attributable encounters, while its inspiration remains available to shape what follows.