Marriage of Olive Hubbard and Philip G. Johnson on April 28, 1981
The Chapel Hill News, May 3 1981, P. 58, Col. 1.

"Olive Hubbard and Philip G. Johnson were married April 28 at the Carolina Inn. A luncheon, attended by members of their immediate families, followed the ceremony.
  The bride lived in Albany, N.Y. before moving to Chapel Hill. The bridegroom is a professor emeritus of Cornell University."