Polska1926 is a new website where we can find signatures of our ancestors. In 1926 the Polish schools conducted a collection of congratulatory signatures on the occasion of the 150th anniversary of American independence. 5,5 million signatures were signed under the Declaration of Admiration and Friendship with the United States.
The original is in the Library of Congress.
In Sokolow, no signatures of children from the Jewish school were collected, but in the villages near Sokolow, where Jewish children went to one school with Catholic children, their signatures can be found on this document, especially in Sterdyń.