Pincus Rubenfeld (1876-1955) arrived in New York on 19 August 1910 as Pinkas Potasznik, having departed from Hamburg, Germany, on July 28th. He gave the name of his brother Chaim Potasznik* as his nearest relative in Krzywcza. Pinkas was joining his cousin Harry Rosner, who was also from Krzywcza and was probably the Hersch Rosner (b. c1884) who had immigrated seven years earlier. Pinkas left his family in Krzywcza, intending to bring them over after he was more settled. He appears in the 1915 New York State census as a lodger with a family on Cannon Street on the Lower East Side and having the occupation of shoe maker. Later, in 1925, according to the State census of that year, he had became a citizen in 1922 and had a shoe store.**
Pincus went back to Krzywcza after World War I, probably departing in May 1920, according to a notation on the 1921 New York ship arrival list. Sailing from Antwerp on 14 April 1921, he returned to New York with his family on 4 May. According to this manifest, the whole family, that is, "Pinchas," his wife Chaja (Chaya Zigler?) and their children Szandla (Jennie), Morris, Chaim (Hyman) and Etla(Anna Ethel) were all born in Krzywcza. Pinchas's cousin, M. [Moshe] Ringiel, was listed as his nearest relative in Krzywcza. In New York they were joining Pincus's brother-in-law I. [Isaac is handwritten on the manifest; he was also known as Isidore] Rubenfeld, said to be his wife's brother.