Source tree from GreenLife by Shamus O'Leary, Oct 2017
This was an unmarked 15 gallon mango. It was a little beat up, and Don gave me a really good deal on it. The trunk is gorgeous which is why I bought it. So I figured it will be a nice 'surpise' mango or it will make a fantastic rootstock. Win-win as far as I am concerned.
Spring 2018, unknown mango looks like it is holding fruit. Hopefully I will be able to make an ID this summer.