From Kayla McClurg at Church of the Saviour:

Mary Cosby (right) passed away very gently and suddenly this afternoon (July 3) at Christ House in Washington, DC. She had been experiencing weakness the past few days, but had gone to worship this morning as usual. In the afternoon we sang hymns, prayed and spoke of Gordon. Someone earlier had said, “Gordon will be right there ready to meet you,” to which Mary whispered, “He’d better be!” Today is Gordon’s birthday. So with her sense of humor and great dignity in tact, she has made the grand transition. Thanks be to God for a life beautifully lived!