Library of Congress indicates the image was taken by a staff photographer of the New York World-Telegram & Sun. Checking copyright.gov, the only items renewed for the Telegram & Sun are:
New York world-telegram Joe Williams baseball reader / edited by Peter Williams. TX0002633237 1989
New York world telegram & the sun Undercover teacher. By George N. Allen. RE0000301742 1986
New York world-telegram and the sun, May 2, 1962 Americans in action; despite death in the snow, every town asked to help. By Mackinlay Kantor. RE0000463435 1962
And only item for Schwimmer is "Nowhere at home: Rosika Schwimmer (1877-1948) and the short twentieth century." TXu001715612 / 2010-02-08 Claimant: DAGMAR WERNITZNIG. Address: Behringstrasse 3, Villach, A-9500, Austria
This work is in the public domain because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.