Try the search tool at familysearch.org for starters. https://familysearch.org/
Searching DE: Warmington 1850-1899 came up with several census results.
There were also some listed as Warming* with the * indicating that the remaining letters were illegible on the document.
https://familysearch.org/search/records/index#count=20&query=%2Bsurname%3Awarmington~%20%2Bany_place%3ADE~%20%2Bany_year%3A1850-1899~