Dear Ms. Jackson,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located the Population Schedules for the 1850 Census, and the Population Schedules for the 1860 Census in the Records of the Bureau of the Census (Record Group 29) that may contain information about Garrett Fitzmaurice and his family. We also located a series titled Records of Appointments of Postmasters, 1832 - 9/30/1971 (M841) in the Records of the Post Office Department (Record Group 28) that may include an entry for Ulysses Fitzmauice. Not all records have been digitized. For access to M841 and/or non-digitized census records, please contact the National Archives at Washington, DC - Textual Reference (RDT1) via email at firstname.lastname@example.org.
Due to the COVID-19 pandemic and pursuant to guidance received from the Office of Management and Budget (OMB), NARA has adjusted its normal operations to balance the need of completing its mission-critical work while also adhering to the recommended social distancing for the safety of NARA staff. As a result of this re-prioritization of activities, you may experience a delay in receiving an initial acknowledgement as well as a substantive response to your reference request from RDT1. We apologize for this inconvenience and appreciate your understanding and patience.
For information about the U.S. Census, see the Census Bureau technical documentation and questionnaires.
New York did not conduct statewide registration of births, marriages, and deaths until 1880. Therefore, we suggest you search substitute record sources such as probate records, church records, and newspaper records that may include more information about the death of Garrett Fitzmaurice. We also suggest that you review the FamilySearch Research wiki for New York Genealogy.
You may wish to search Ancestry.com or FamilySearch.org for the U.S. Census and M841. There may be a fee for using Ancestry. Instead, check for access at your local library as many library systems subscribe to these sites, making them free for their patrons.
We hope this is helpful. Best of luck with your research!