Robert Allison now missing 12 years, Bethel Park, Pennsylvania

You may wonder why I wrote "Bethel Park" when his profile says "Waynesburg". I usually list people by where they were last seen. I am guessing that he probably lived in Waynesburg.
Photo and information from The Charley Project:

Vital Statistics at Time of Disappearance
Missing Since: December 21,
1994 from Waynesburg, Pennsylvania
Classification: Endangered Missing
Date of Birth: November 12, 1952
Age: 42 years old
Height and
Weight: 5'9, 170 pounds
Distinguishing Characteristics: Brown hair. Allison
wears glasses.
Medical Conditions: Allison suffered from depression at the
time of his disappearance.

Details of Disappearance
Allison was last
seen at Tri-River Fleeting in Bethel Park near the city of Pittburgh. He was
employed there on a river boat. Allison left work that day intent on going to a
bar in west Pittsburgh. He has never been heard from again. All his possessions
were found on the boat. Few details are available in his case.

Investigating Agency
If you have any information concerning this case, please contact:
Pennsylvania State Police
724-627-6151

It seems that not much is known about the disappearance of Robert Elmer Allison, so please call police if you know anything.
I haven't found a poster of Robert, but his Charley Project profile seems short enough to be printed and used for that purpose. A color photo is shown on his Doe Network profile (http://www.doenetwork.us/cases/863dmpa.html), but I could not get it to load.