Just confirming git for this new account is setup as desired.
This is my first run at having multiple GitHub accounts (personal and work).
Key bits:
$ ssh-keygen -f ~/.ssh/id_rsa.tvon-a-github
# ....Update ~/.ssh/config with:
Host github.com
HostName github.com
User git
IdentityFile ~/.ssh/id_rsa.tvon-a-github
GPG setup is the same as with the inital account, just gen a new key.