Take distinct values from two different columns in two different tables and create a new table

Hi, 

So I've got two tables both with Account Manager columns, for example

Table 1:

Gary

Gary

Dave

Terry

Billy

Billy

Table2:
Jenny

Jenny

Dave

Billy

And i want to then create a new table with:

Gary

Dave

Terry

Billy

Jenny

I've tried using summarize and distinct but to no avail...