Welcome to History Hub
Since your ancestor came here by way of Ellis Island you might like knowing about the experience of many
who came here the same way. Here is a video. https://history.com/news/ellis-island-immigrants-compare-today-study
You can try to find your grandfather's name on familysearch.org..it is a free website, you just need to register
to search. Here is a link to passenger lists
If you need further assistance please do not hesitate to ask.
You would start by finding his passenger arrival list. If he was detained for any reason including illness or hospitalization he should appear twice on the passenger list. First would be the regular passenger list section, where all passengers were listed and then at the end of the list (sometimes it comes first since some of the Ellis Island lists were microfilmed in reverse order) were there is a separate list of detained passengers. This second list will include the dates that he was detained, reason for detention (sometimes just a code), if he was hospitalized away from Ellis Island, and the number of meals provided. If you want to share his name and the country from which he came, we could help you look for this information.
Dear Mr. Kober,
Thank you for posting your request on History Hub!
We suggest that you search for records of your grandfather’s immigration in the Passenger Search - The Statue of Liberty & Ellis Island and the New York Passenger Arrival Lists (Ellis Island), 1892-1924. In addition, the NARA finding aid for NYC Passenger Arrival Lists may also be useful.
We hope this is helpful. Best of luck with your family research!