John Sess cemetery record #39874 indicates that John was the widowed husband of Julia Bernhardt Sess; her cemetery record (unnumbered) indicates she was the wife of John Sess.
Johann Sess u. Julia Bernhardt, 18 April 1869, license 15 April Nr. 564, buch 49.
Groom: Sess, Johan; Bride: Bernhardt, Julia; Date of Marriage: 18, Apr. 1869, code 8.