We know this is a longshot but....
Back in 2009 we met a Chinese couple that owned a small convenience store near the bridge. Their last name has faded from our memory.
We tried to find them this summer but were either looking in the wrong place or more likely the store has been torn down and replaced with another building.
They had a daughter with the unusual (to us anyway) name of Ping. She was very proud of how highly she was ranked in her class. She would be about high school age now. They also several older male children who would be in their 20s now.
It was a white block building with a picnic table out front. We don't remember a sign.
Does this ring any bells with anyone?