She said she instantly recognized her husband's signature on Obama's birth certificate — especially because it had no period after the middle initial "A."
"He was supposed to be named David Augustus, but his mother didn't like Augustus," Sinclair said. "So he didn't have a middle name. It was just ‘A.'
Sinclair was the son of former Territorial Engineer Karl Sinclair, who later became engineer for the City and County of Honolulu.
David A Sinclair, a lifelong Democrat, witnessed the attack on Pearl Harbor as a 15-year-old boy and later became an Army Air Corps lieutenant, flying night missions in a P-61 over Asia, Ivalee Sinclair said.
She met him after the war in trigonometry class at the University of Hawaii in 1946 when Sinclair wanted to become a doctor.
"After dropping so many bombs, he wanted to do something that was positive in the world," she said. "He felt badly about all of the people he had killed and went into medicine to give back the lives he had taken."
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