Her top match is Andrew K, which has already been covered.
Her second top match is Alisonn. They match in segments of chromosomes 3, 16 and 20. They tested at AncestryDNA. Some day soon I really need to get at least my half siblings tested at AncestryDNA (my maternal half siblings are all tested at 23andMe, and transferred to FTDNA, but there is no transfer option at AncestryDNA).
I emailed the match, and since I have no family tree to work with am moving on.