Saleski was born in Germany and came to the US in 1881. She graduated from Wesleyan University in 1900 with a BA in Classics and earned an MA from Columbia University in 1918. In addition, Saleski received a doctorate from Leipzig University (in Germany) in 1929.
After her graduation from Wesleyan University, Mary Saleski joined the New York Free Circulating Library in 1900. She became an NYPL staff member in 1901 with the consolidation of the NYFCL. Saleski took a leave of absence in 1902 to attend New York State Library School. She returned to NYPL in 1904 as BL at the Tottenville Branch, and then headed the Aguilar, 125th Street, and Epiphany Branches.
Saleski resigned from NYPL in 1921 and worked as a college professor at St. Lawrence University in New York and Bethany College in West Virginia.
Today would be Mark Saleski’s 133rd birthday.