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Likely. Vestal's War Diary is incredibly vague and Dorsey's slightly less so, but at least reports being in port at Pearl between the 4th and 10th of July.
Pearl Harbor Navy Yard's war diary doesn't mention Dorsey by name for the daily yard work, but also doesn't mention Portland at all so it's likely Vestal was operating under another command. I'm out of energy tonight to look further.
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