Walentyna Janta-Polczynska, among the last surviving members of the Polish government in exile, which was formed after Nazi Germany invaded Poland, died on April 2 in Queens. She was 107.

Her death, at a hospital, was confirmed by her niece and closest survivor, Karolina Rostafinski Merk.

Ms. Janta-Polczynska — known then as Walentyna Stocker — emigrated to New York after the war and married Aleksander Janta-Polczynski, a journalist and poet. They opened an antiquarian bookstore in New York, and their home in Elmhurst, Queens, became a gathering spot for Polish artists, writers and expatriates who had fled the Communist dictatorship that had taken power after the war. She became known as “the first lady of American Polonia.”

When Poland was invaded in 1939, Ms. Janta-Polczynska was studying English in London and was soon hired by the Polish embassy. She was promoted to personal secretary to General Wladyslaw Sikorski, the prime minister of the Polish government in exile and commander of the Free Polish Armed Forces, and became his confidante.