Use the free Career search to help you locate former coworkers. Just add the name of the company where you both worked and hit search. People who have entered the name of that company on their profiles will show up in the search results and you can then use other information such as name, location, school, or interests to help you find the missing coworkers.
You can also find a specific coworker by looking through the friends of coworkers that you have found already.
