I did not have much luck in finding where Daniel actually died but my hunch is Portage, Wood Co., Ohio. In 1880 census they are still there and they are buried in Mt. Zion (0ld) Cemetery in Portage Twp, Wood Co. west side starting in the SE corner; Row 15 No. 18 Father:Clemons, Daniel Feb. 15, 1812 - July 16, 1888 Mother:Clemons, Hannah wife of D. Clemons Oct 7, 1820 - Mar 3, 1893 Clemons, John 3-18-1846-12-13-1910 GAR Clemons, Elizabeth P. 1852-1935
I checked the West Millgrove cemeteries (Riverview and the Mennonite) and there was no mention of them ever being buried there.
I went through the probate records Vol II 1888-1901 and there was a listing for Hannah but not Daniel.
Clemons, Hannah 3 Mar 1893 white death age 73 place Wood Portage birth place Stark Co., OH pg. 25.
I also went through the July and August issues of the 1888 Fostoria Review Times since this is actually the closest to where they lived and there was no mention of Daniel's death. But I did read about quite a few people having typhoid fever.
Since the probate records that I found were Vol II and starting 1888 you might check Wood county for Vol I.