Horse Racing Print "Muddy Track"

[ilzho]

Hello:

My boss has this horse racing print and he wants to find out information about it since it was his father's.
It's named "Muddy Track" and it looks like the artist's name is "Green"??

If anyone knows anything about the artist or print, I would appreciate any information.

Thank you,
David

[ReplayRandall]

Here's another work of Shirl Green, 2nd image has signature:

https://showlow.craigslist.org/art/5981228382.html