Hi @Billy Thompson ,
Generally the Calendar function is limited in Teams, you cant select the kind of or whose calendar could be show.
You may refer to these ideas:
https://techcommunity.microsoft.com/t5/microsoft-teams/multiple-calendars-in-teams/m-p/622468
https://sharepointmaven.com/how-to-add-a-channel-calendar-in-teams/
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Hope these methods could help, if that's not what you want to know, please let me know what's your problem:)
Best regards,
Lou
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