found:Scanlon, Jennifer. American women historians, 1700s-1990s, 1996:page 166 (Nellie Neilson, born April 5, 1873 in Philadelphia, Pennsylvania. Received AB, AM and PhD from Bryn Mawr College, the latest in 1899. Taught at Miss Irwin's School in Philadelphia, then at Bryn Mawr (1900-1902) then at Mt. Holyoke College (1902-1939); author of multiple books. Died May 26, 1947 in South Hadley, Massachusetts.)