Sonnenberg church on Hackett Road was the first. It was the mother church for Salem Mennonite on Zuercher Road in 1886 and for the Kidron Mennonite in 1936. I asked Breckbill why the winter hours weren't posted on the center's door. He replied that a painter had been assigned the task. I've heard that explanation at other places.
Communication is more important than gold-leaf letters.