Announcement has been made of the engagement of Elyssa Okkelberg and Klaus Zhang, both of New Orleans, La.

A June 21 wedding at the Genetti Hotel Grand Ballroom is being planned.

Okkelberg is the daughter of Eileen and Joseph Okkelberg, of Williamsport. She graduated from Williamsport Area High School in 2007 and received a bachelor’s degree in materials science and engineering and also in art history with a minor in nanotechnology from Penn State Schreyer Honor’s College, State College, in 2011. She is employed by Shell Motiva, Norco, La., as a corrosion and metallurgical materials engineer.

Zhang is the son of Baozhu He and Geoffrey Zhang, of Campbell, Calif. He graduated from Parkland High School, Allentown, in 2007. He received a bachelor’s degree in electrical engineering from Penn State Schreyer Honor’s College in 2011 and is pursuing a doctorate degree in electrical engineering at University of New Orleans, New Orleans, La.