These school children sang and danced to celebrate Juneteenth in Myrtle Beach. Photo by Mark Gaier. For more photos by Mark at the event, please visit https://www.flickr.com/photos/140923467@N04/albums/72157719440641019   HCDP Chair Alester Linton-Pryor attended the Juneteenth celebration Saturday, June 19, sponsored by Neighborhood Service of Myrtle Beach, saying it was a “unifying event,” commemorating the freedom of…