Deleting Norton backup files from External Drive

My external "G" Drive has 265GB free of 931GB.  Under my N360-Backup directory I have 3 subdirectories with modified dates of 12/07/14 (subs dated 04/28/13 to 12/07/14), 04/21/16 (subs dated 04/17/16 to 04/21/16) & 10/08/16 (subs dated 10/06/16 to 10/08/16).  Can I delete the 12/07/14 & 04/21/16 directories to free up space on my external backup drive? 

Thanks a bundle!  I thought so but wanted to be sure!

Hi, PatB. Yes, you can delete those files. Norton will create more up to date ones, anyway.