I have attached Martin Paicer's Declaration on Intent, which states he entered the US at New York on or about December, 1883. The reason I am not sure that the 1905 passenger list naming Marcin Palcar relates to the Martin Palcar/Paicer in my family tree is that he lived his life in St. Paul, MN, and I would need to find some proof that he changed his residence to that state for some unknown, but temporary length of time. Without some solid proof that the ship's manifest relates to him, I would not use it.
Regarding John Palcar, I forgot to add one unusual detail about his life. After he and his wife Anna Plakut and their children moved to Chicago around 1905 (the same year as the ship's manifest - as I just noticed), his wife passed away on November 15, 1908. John Palcar remarried less than two months later on January 11, 1909. His new wife, Karolina Gomułka was 22 years old, while John was 40.
It was my search for John, about whom all I had known was his marriage to Annie Plakut, that led me to discover and prove that Anna Plakut was in fact a separate person from her younger sister Antoniette Plakut. There are very few records for Anna online, and like just about everyone else who has parents Joseph and Catherine Plakut in their family trees, I thought "Annie" was just another one of "Antoniette's" nicknames. Finding Anna was an added bonus.