WIYN/HYDRA spectra in the Li 6708 Å region have been obtained for 332 probable members of the old open cluster , NGC 6819 .
Preliminary analysis shows a pattern of Li depletion from the top of the turnoff to the base of the giant branch .
Starting one magnitude below the level of the clump , all brighter giants have A ( Li ) below 1.0 , with most having upper limits below 0.5 .
Star W007017 , located below the first-ascent red giant bump is Li-rich with A ( Li ) = 2.3 .
As a highly probable single-star astrometric and radial-velocity cluster member , its discrepant asteroseismic membership could be a by-product of the processes that triggered Li-enhancement .
Its color-magnitude diagram location is consistent with only one proposed enhanced mixing process among first-ascent red giants .