Grace Walker, 90, who worked for Pan American World Airways and volunteered in former first lady Hillary Clinton’s social office in the 1990s, died April 29 at Grand Oaks Assisted Living in Washington. She had cancer.

Mrs. Walker, who had been a flight attendant for Pan Am in the early 1950s, worked for the sales and marketing departments of the airline’s federal affairs office in Washington from 1970 to 1992.

In the 1960s, Mrs. Walker was an events coordinator for the Business Council for International Understanding, a former American University program that helped companies with overseas transfers.

She was a member of World Wings International, a fundraising organization for former Pan Am flight attendants.

Grace Velma Burtt was a native of Ferndale, Mich., and attended Hillsdale College in Hillsdale, Mich. In the late 1940s, she served as a civilian secretary with the Army in Japan.

She lived in Colorado and New York before returning to Washington in 2009.

Her husband of 57 years, Robert H. Walker Jr., died in 2010. Survivors include three children, Amy Barrs of Atlanta, Matthew Walker of New York City and Rachel Luersen of the District; and two grandchildren.

— Megan Buerger