Change "by" at top of Blog Page

Hi. How do I edit the word "by" at the top of the blog page and blog posts page, as shown in this image?

Please provide instruction for how to do this with my child theme.
Thanks!

 

Hi vesity,

To change by word in blogs posts, find the loop.php on blackwelltheme directory and open it on editor and follow the steps as attached image.
To apply in you child theme, copy blog.php and loop.php file from theme directory in your child theme directory.

 

Thank you. Unfortunately, this didn't work. I made the edits as instructed, then copied the two files into the child theme directory, but it didn't change anything. See image...

The loop.php file is also attached FYI...

 

Hello Vesity,
Please follow above instructions in single.php file for single page or post.
Thanks & Regards
Pramod

 

Thank you. Should I leave the edited loop.php file in the child directory, or is it not needed?

 

Hello,
You can leave it if it did not works.
Thanks & Regards
Pramod