Amtrak police are searching for a retired San Francisco firefighter who went missing while traveling to visit family in Montreal . Charlie Dowd , 69 , left the Bay Area on Wednesday . He last spoke to his son by cell phone Thursday night , saying he was just outside of Denver , Colorado , his family said . When Dowd 's train arrived in Chicago on Friday , he was not on it . His luggage , cell phone and medication were found in his sleeping car , the family said on a Facebook page they set up to find him . His daughter said Dowd is under a doctor 's care and may need medical attention . `` He has medical needs and does need his medication for high blood pressure and heart disease , '' Jennifer Dowd told CNN affiliate KGO . `` He is diabetic , but for medical reasons we obviously want him . We need to know where he is . '' An Amtrak conductor may have spoken with Dowd early Friday near Omaha , Nebraska , one of the stops along the route , the family said . Dowd was confused about his whereabouts and believed he was in an apartment , not on a train , and needed to find the front door , the family said . Amtrak is investigating the possibility that Dowd got off the train during the night and may have gotten disoriented , and then did n't get back on , the family said . The train stopped overnight in Fort Morgan , Colorado , and in the Nebraska cities of McCook , Holdrege , Hasting , Lincoln and Omaha . Amtrak Police said they are working with local police departments at those stops and at BNSF , which owns the railroad . Jennifer Dowd flew to Omaha on Sunday to look for her father . She said her brother , Kevin , went to Chicago and her cousin , Robert Stevens , is going to all of the stops along the route to search . Charlie Dowd has gray hair and blue eyes , wears glasses , and is 5 ' 10 '' tall . The family asks anyone with information to contact Amtrak Police or the family at http : //www.facebook.com/MissingPersonCharlieDowd . Crews search after cruise passenger goes overboard .
Charlie Dowd was on his way from San Francisco to Montreal last week . He was not on the train when it arrived in Chicago . Police found his phone , luggage and medication on board . His family says he may be disoriented and needs medical attention .