IIRC it is in the set of interviews from her co-workers such as Sam Sloan contained within this special which I bookmarked at the time, and saved in my address bar. I will admit that I do NOT know if the links are still active because they did remove the main links as individual links and I was getting the familiar 404 errors but the links within the special may still be active.
Try the stories in particular about Madelyn and her rise in banking. I apologise in advance for any typing errors I have been having difficulties with the keyboard of this dinosaur laptop but am making do.
http://www.honoluluadvertiser.com/apps/pbcs.dll/section?Category=SPECIALOBAMA08
"After the war, she attended UC-Berkeley, worked various jobs on the Mainland, then came to the Islands, where she joined Bank of Hawaii in 1960.
"She started in the bank's escrow department, became its manager in 1962 and eventually was named the bank's first woman vice president in 1970, along with the then-Dorothy K. Yamamoto.
"Was she ambitious? She had to be to become a vice president," said Clifford Y.J. Kong, 82, who was a senior credit officer at the bank at the time. "She was a top-notch executive to get appointed. It was a tough world."
"For much of post-World War II Hawai'i, people openly spoke and joked about race — just as they had on the sugar and pineapple plantations where each new wave of immigrant workers instantly became the latest butt of jokes, Slom said.
"At the time Obama was growing up, Slom said, more overt racism thrived in the Islands at places like the Pacific Club, "which had a ban on Orientals."
"Current and former Bank of Hawaii employees remember young Obama and Soetoro-Ng sitting inside the bank after school, doing their homework while they waited for Dunham to get off work.
"He and Maya would come in after school," Ching said. "I wasn't married or had any kids so nothing impressed me. But they impressed me."