Belvidere Newspaper Obituary Index 1851-2018 – this Boone County and Belvidere, Illinois obituary index is searchable by surname. This index includes obituaries printed in the Belvidere Standard, the Belvidere Daily Republican, or the Republican-Northwestern newspapers of Belvidere, IL. However, assume the obituary was printed in the Belvidere Daily Republican, unless otherwise noted. Please note that some dates refer to the date of death, while other dates refer to the date of the newspaper in which an obituary or death notice appeared. If a page number is listed, then the date refers to the date of the paper.