Police in Pennsburg, Montgomery Co., have put out a plea for help in locating Mark Drenning.
Drenning's roommate was under the impression that Drenning went to work at Kids Peace in Allentown on the morning of Nov. 27, police said.
Business records, however, reflect that Drenning hasn't worked at the company for approximately six months, police said.
Drenning was supposed to attend Thanksgiving dinner at his mother's home in Telford at 1 p.m. Thursday, but police said he never showed up.
Drenning, 52, has a history of depression and multiple sclerosis, which has been causing him problems lately, in addition to other health issues, according to his mother.
Drenning, described as a white man who stands 5 feet, 5 inches tall and weighs 140 pounds, has brown hair and brown eyes and wears glasses. He drives a gold 2005 Volvo S60 (sedan) with Pennsylvania license plate JFG-5909.
Anyone with information about Drenning's whereabouts is asked to contact the Upper Perk Police District at 215-679-8203.