Silke Wolkerto marryMr. and Mrs. George H. Watson, 5132 Woodlawn, announce the engagement and approaching marriage of their daughter, Silke-Karo-line Wolker, to Judd Wahl Sharer, son of Mr, and Mrs. Wesley E. Sharer, 4830 Kim-bark.Both have been students at Roosevelt University.They plan to be married at Bond Chapel on the campusof the University of Chicago on Saturday, June 11.