The sheet on the 1850 census page linked on her profile was 17 Sept. It was supposed to include everyone still alive on June 1st.
Edit: I found her on a mortality schedule. Hope you can access the sharing link. I'll see what else I can find.
"New York, U.S., U.S. Census Mortality Schedules, 1850-1880"<br/>U.S. Census Mortality Schedules, New York, 1850-1880; New York State Education Department, Office of Cultural Education; Albany, New York; Year: 1850; Roll: M1; Line Number: 20<br/>{{Ancestry Sharing|27886783|fd8a79}} - {{Ancestry Record|1626|2807646}} (accessed 29 March 2022)<br/>Clarisia Clark (50), married.