I founf this:
August 13, 1966: "The disappearance of a Colorado man here a week ago is under investigation by Tucson police who fear he may have met with foul play. Missing is Charles Keith Beth, 41, of Denver, a salesman who police say has been missing since Aug. 5. He is part owner of a vending machine company, Frosty Shakes, Inc., which has made sales in Tucson and Phoenix. He was reported missing by his wife who told police he was to return to Denver Tuesday. Detectives said Beth checked into a Tucson motel a week ago, telephoned his wife and made some business contacts. His clothing and other personal effects were found in his motel room Wednesday, police said. His automobile, a 1965 Buick, is missing. It bears Colorado license plates AJ-8226. police said. The investigation has become "increasingly baffling," police said. So far there has been no evidence of foul play. Beth IS 6 feet tall, 165 pounds, wears glasses and is described as very reliable."
Phoenix Arizona Republic Archives, Aug 13, 1966, p. 70
August 16, 1966: "Charles Keith Beth, 41, a Denver salesman, has been reported missing for 10 days. Beth's locked car was found Saturday near the International"
Arizona Republic from Phoenix, Arizona on August 16, 1966 · Page 9
August 11, 1972: "It was about this time six years ago, when it happened. Charles Keith Beth, a 41- year-old Denver salesman, vanished while on a business trip in Tucson -- without a trace, without clues, without evidence of violence, without a single known motive. The case has a singular interest because of the totality of the mystery. Beth looked a little like a college boy. He was about fi feet, 165 pounds, had hazel eyes and close-cropped dark hair. He wore dark, horn- rimmed glasses. It was during the first week of August 1966 that Beth checked in at Tucson's Ramada Inn. He was in Tucson to look at the market potential for Frosty Shakes Inc., a vending machine operation of which he was part-owner. Beth's wife, Jean, still lives in Denver. She has not remarried; it would be considered illegal. Her husband cannot be declared legally dead until seven years have passed. Beth, the father of two children, was described by all who knew him as "extremely reliable," a man without emotional problems and said to have been happily married. Dr. Clyde Tucker, Beth's brother-in-law and a Denver physician, said this week that a $500 reward for information leading to Beth's whereabouts still stands. Although six years have passed, Tucker, like the police, has run into nothing but deadend leads. One, from a source Tucker did not identify, had suggested a link between the salesman's disappearance and men, also unnamed, associated with the Mafia. The tip proved worthless, although Tucker and Beth's wife took the information to the Federal Bureau of Investigation. When Beth was reported missing, his personal belongings and some business papers were found in his motel room, along with some of his clothing. There was nothing to indicate foul play. A few days later, Beth's car was found parked and locked a few hundred yards from the United States-Mexico border checkpoint, in Nogales, Ariz. Again, there was no evidence of foul play. Mexican police found nothing on their side of the border. And an FBI agent who helped at the time, said Tucker, also came up with blanks. On Aug. 20, 1966, Mrs. Beth found a list with names of Mexican businessmen with whom her husband apparently had planned to meet. A check of those sources again turned up nothing. A1966 check with the American Express New York office led nowhere. Police will attest that the kind of disappearance in the Beth case is not really unusual if a person is determined to lose himself. But the baffler in the Beth case is what doesn't fit the mold: Happily married, father of two, an apparently success- ful businessman who had made new sales on his trip to Arizona, a man respected and liked by his friends, a man without apparent emotional difficulties. Was it murder: If Beth did have only ?50 on his person when he left Tucson, as was speculated, was robbery a motive? Or was it a vanishing "act" staged by a man with a secret of his own? Or, is Charles Keith Beth still alive? Whatever, the case never has ended. It only has stopped, with a final notation in a police file, dated Sept. 2, 1966: ·'There is no further information on 'the whereabouts of Mr. Beth."
Tucson Daily Citizen from Tucson, Arizona on August 11, 1972 · Page 36
