Died: January 31, 1962
Married: John Seymour Thacher (June 10, 1856-October 28, 1922)
Children: John Seymour Thacher Jr. (1904-1982)
It appears that the Frances Lake Thacher whose page this is may have had a daughter by the same name who was born June 18, 1908 and died May 31, 1917. Her early death might explain the child in the window design.
Frances E. Lake Thacher was the daughter of George Graham Lake and Frances Emma Baker
Her mother built Baker Chapel at Trudeau Sanatorium, including its three original stained glass windows near the altar, in 1896. Mrs. Baker's daughter, Frances Lake Thacher (widow of John Seymour Thacher), added the large east window in 1924, in memory of (left to right) a daughter, her mother and her husband, all deceased.
New York Times, January 31, 1962
MRS. JOHN S. THACHER
Special to The New York Times.
WASHINGTON, Jan. 30— Mrs. Frances Lake Thacher, widow of Dr. John Seymour Thacher, a New York physician, died here today at the home of her son, John Seymour Thacher, director of Harvard University's Dumbarton Oaks Research Library and Collection in this city. Her age was 90.