Here’s the information you requested:
Cemeteries of Brown County, Illinois, 1825-1972
Fanny wife of Josiah B. Anderson 10 Jan 1851.
[This is all there is to this entry. There is no indication of whether this is a birth or death date, but it’s probably her death date. There is no indication as whether Josiah is buried here too.]
From: Debbie Stokke [mailto:firstname.lastname@example.org]
Sent: Tuesday, July 30, 2002 1:33 AM
Subject: Brown County Cemetery Prem Resd
Page 95 Josiah Anderson and Fanny