Here’s the Passenger Manifest:
http://www.malaysiaairlines.com/content/dam/mas/master/en/pdf/Malaysia%20Airlines%20Flight%20MH%20370%20Passenger%20Manifest.pdf
Americans listed are:
Philip wood age 51, a 4 y/o child named Nicole Meng (Chinese parents) a 2 y/o child named Yan Zhang (Chinese parents)
American Phillp Wood works for IBM per NBC Nightly News.