After a second look and a little more pondering..... With the scalloped, beveled edge, it looks like it was made for cutting roots.
Hmm well google search by image found some results for you lol.
https://www.google.c...BA&ved=0CFQQ9Q8
Apparently it's an Asian girl... or a fox with a sword.
Your family beat my maternal family by a few decades. They came via Holland with Wm Penn.I was thinking a Dutch hoe as well as they are similar although the ones I have seen are not pointed. I'm Dutch but we came to America over 350 years ago so I'm a little out of the loop so to speak. lol
I think its the original handle as well. The tool end is just rusty from oxidation. There is no name on it that I could see.