This table has 33 percent width applied to just the header rows.

Missouri Type Users
Admin User Name #1
Reader User Name #2
Reader User Name #3
St. Louis Type Users
Admin User Name #1
Reader User Name #2
Reader User Name #3
Kansas City Type Users
Admin User Name #1
Reader User Name #2
Reader User Name #3

This table has no width applied. You can see how the columns resize when rows are hidden.

Missouri Type Users
Admin User Name #1
Reader User Name #2
Reader User Name #3
St. Louis Type Users
Admin User Name #1
Reader User Name #2
Reader User Name #3
Kansas City Type Users
Admin User Name #1
Reader User Name #2
Reader User Name #3