I had seen this manifest and did not know whether to be excited or discouraged. Everything looks promising, even the infant daughter Stefania, who does not figure in later censuses, can be explained away: she may have died. And they are headed for Passaic, NJ, where Josefa will catch up with them 5 years later. But it sort of falls apart with the place of birth/last residence.
Why should one sister be born in Kaszyce and another, 9 years in later, in Pysznica? Families were not so mobile back then. There are about 50 mi (80 km) between the two villages. Besides, it would have had to work like this:
1. Klara is born in Kaszyce in 1884. She stays there until she leaves for America 25 years later. Her husband is born in Warzyce and moves to Kaszyce to meet Klara and have a baby with her there.
2. Klara's family moves to Pysznica when Klara is less than 9 years old, to have her sister Josefa in 1894, and stays there until 1915 when Josefa leaves to America.
This is enough to suspect that the Josefa who was traveling to Passaic, N.J. in 1915 to reunite with her married sister Klara is NOT our Josephine. This despite the fact that the all the other names, places and dates (Klara, Passaic, 1915) match the family memories.
And then there is the (mis)spelling of Klara's place of birth and last residence. We have "Zaczyce" on page 1 and "Kazyce" on page 2. Neither is a real name of a place in Poland, so we have to guess: Kaczyce or Kaszyce? You assumed Kaszyce, it seems. It works better than Kaczyce, because it's not quite as far from Pysznica.