Silver necklace with leaf charm

I found a delicate silver-toned necklace this afternoon around 3:15 pm in the parking lot behind the Starbucks on 6th Ave, Topeka, near Gage Park. It's about 16 inches long with a slender chain and a small leaf charm. The charm has a tiny initial 'M' engraved on it and there's a tiny turquoise bead near the clasp. The chain shows a bit of tarnish from wear, but it's clearly well-loved. If someone recognizes it, I'd love to help reunite them with it; I know how sentimental something like this can be.