$co_author = Array
(
    [ID] => 101
    [user_firstname] => Conrad
    [user_lastname] => Sheehan
    [nickname] => conrad.m.sheehan
    [user_nicename] => conrad-m-sheehan
    [display_name] => Conrad Sheehan
    [user_email] => conrad.m.sheehan@accenture.com
    [user_url] => 
    [user_registered] => 2019-02-25 20:36:15
    [user_description] => 
    [user_avatar] => 
)

 $co_author = Array
(
    [ID] => 101
    [user_firstname] => Conrad
    [user_lastname] => Sheehan
    [nickname] => conrad.m.sheehan
    [user_nicename] => conrad-m-sheehan
    [display_name] => Conrad Sheehan
    [user_email] => conrad.m.sheehan@accenture.com
    [user_url] => 
    [user_registered] => 2019-02-25 20:36:15
    [user_description] => 
    [user_avatar] => 
)

 $co_author = Array
(
    [ID] => 101
    [user_firstname] => Conrad
    [user_lastname] => Sheehan
    [nickname] => conrad.m.sheehan
    [user_nicename] => conrad-m-sheehan
    [display_name] => Conrad Sheehan
    [user_email] => conrad.m.sheehan@accenture.com
    [user_url] => 
    [user_registered] => 2019-02-25 20:36:15
    [user_description] => 
    [user_avatar] => 
)