Admin email address showing my name instead of user name

Admin email address showing my name instead of user name

Hi guys,
 
I set up the account originally using my own email address evelyn.matthews@fitzgerald-fii.com and have since added 4 users which are all general usernames. I do not want my own name associated with any of the accounts.
 
The admin user is the email address antibodies@fitzgerald-fii.co.uk and this has been given the 'name' under the User Details Section as Antibodies - Fitzgerald-FII UK but when I send an email it ends up coming from evelyn.matthews instead even though I have not selected that as a name.
 
How can I choose to display the proper user names in the 'from' field when I am sending an email?
 
Thank you,
 
Evelyn