Alice T. Davison, 104, a volunteer and onetime secretary to Winifred Holt Mather, a founder of the global charitable group Lighthouse International, died Dec. 22 at the Springhouse assisted living facility in Bethesda. She had congestive heart failure.

A daughter, Elizabeth Davison, confirmed the death.

Alice Bradford Tweedy was a native of South Orange, N.J. She moved to Washington in the late 1920s. From 1930 to 1939, she worked as a private secretary to Mather, who co-founded what became Lighthouse International with her sister Edith in 1903 to help individuals with vision problems.

Mrs. Davison accompanied Winifred Mather on advocacy trips to Europe and Asia.

She was a former board member of St. John’s Child Development Center in Washington and All Hallows Guild of Washington National Cathedral, which supports maintenance of the grounds. She received an award from All Hallows Guild in 2009 for her 70 years of volunteer service.

Her other memberships included the National Society of the Colonial Dames of America and St. Alban’s Episcopal Church in the District.

She lived in Washington before moving to Springhouse in 2011.

Her husband of 33 years, James F. Davison, died in 1972. Survivors include three children, Alice Davison of Iowa City, James Davison of Annapolis and Elizabeth Davison of Washington; two granddaughters; and five great-grandchildren.

— Megan McDonough