Within AFC's objects, where can 'Default Expense Account' info be found?

Summary:

Within AFC's data objects, where can 'Default Expense Account' info associated with a person record be found? Please refer to the image attached.
I am looking to identify person records based on their default expense account to qualify a department range based on cost center where their person record is related to the 'who' columns of transaction records.

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Attached

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26A