Dear Ms. Nill,
Thank you for posting your request on History Hub!
The Federal Government does not ordinarily create or maintain birth, death, marriage or divorce records. Such records are made and kept by State and local governments rather than the National Archives. We suggest that you search the New York State Archives: Birth, Marriage, and Death Records website for the information about how and where to obtain a copy of the death certificate for Lillie Vera Daniels.
We searched Ancestry and located All Death, Burial, Cemetery & Obituaries for Lillie Vera Daniels but nothing specific using the information provided. There may be a fee for using Ancestry to access digitized records. However, you may view these records online at one of NARA's facilities for free via a NARA PC. For the nearest NARA location, please consult our web page at https://www.archives.gov/locations/.
You may also wish to contact the websites of local funeral home or newspaper to determine if any information about her death can be located.
We hope this is helpful. Best of luck with your research!