Mr. McCully was owner and president of Complete Marketing Company for more than 11 years.
He is survived by his wife, Gail; children, Keene, Claire and Sydney, all of Napa; his parents E.J. and Marian McCully and his brother, Mark McCully and his wife Chris, of Honolulu, Hawaii.
Memorial services will be held Dec. 31, at 5 p.m., at St. Mary's Episcopal Church, 1917 Third St., Napa.
Donations may be made to a trust for the children at Vintage Bank.