PORTLAND (AP) — The woman believed to be the oldest person in Oregon has died at the age of 111.

Helen Johnson was born July 20, 1896, in Berlin. Her family emigrated from Germany to the United States at the turn of the century, and settled in Oregon.

According to a California research group, Johnson was the 24th oldest person in the world when she died Thursday at her home in Portland.

She said she never smoked, but enjoyed an occasional whiskey and vodka martini.

Johnson took part in several aging studies, including one at Oregon Health & Science University. Her DNA is preserved with samples of about 100 other people who made the 110-year milestone and whose genes are being analyzed.