Idea: models with two objects

Yep. Thanks Stephen. I have used that and it works great. My explanation of what I was trying to accomplish was a bit flawed. Instead of showing data from two models in the same row, I want to show Rows from two different models in the same table. Say I have a custom object called “incoming mail” . I have a separate custom object called “outgoing mail”. They are both children of Contact. I would like to display rows from both and sort by the created date field in a single table. There are other examples like displaying tasks and custom object records in the same table for a given contact. The idea would be for records from both objects to appear in the same table and be sortable by some common criteria like created date or a Ui only formula field.