unable to get SSH keys working between sourcetree and github

Question

I was able to create a key and connect to github following these instructions via the command prompt successfully:

https://help.github.com/articles/generating-ssh-ke

Answer 1

For Sourcetree on MacOS I had to change from OAuth to Basic authentication, use "git" as the username (not my GitHub username), and generate the SSH key and input it into GitHub. Only then could I clone a GitHub repo via SSH in Sourcetree.