This author has Common Knowledge edits adhering to a secondary, combined author name. Edit and revise as you see best.
From John Gillingham (gillinghamjohn)
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Combination issues. This author has combination issues that need to be cleared up.
"John Gillingham" is composed of at least 2 distinct authors, divided by their works. You can edit the division.
John Gillingham is composed of 3 names. You can examine and separate out names.