Here is an interesting two-page article detailing the Wrather Story.
The interesting item here is a picture of J.D. Wrather senior, Jack's father as well as a photo of Jack Wrather with Walt Disney on the grounds of the Disneyland Hotel.
This brochure was published not long after Jack's passing when his son Christopher took over as President of Wrather Corp. I would date this brochure from 1985 or 1986.