Aug 15, 1902, "The Sun" newspaper of Springfield, Clark Co, OH, front page:
"John A Miller Dies."
"John A Miller, aged 70 years, the father-in-law of City Clerk Robert Lantz, died last evening at his home, 208 Pearl Street. His death was caused by senile gangrene. Mr Miller was born in Wurtenburg, Germany and has lived in this city for the last 26 years. He was a member of the U.V.U. and a well known man about the city. He is survived by a widow and 10 children, five sons and five daughters. They are: Mrs Robert Lantz of this city, Mrs George Stevens of Urbana, Mrs A J Kait, Mrs William Stoessel and Mrs Milton Neidlinger of Dayton; and Edward, Robert, Alexander C, Walter and Lawrence Miller, all of this city. The funeral announcement will be made later."
"The Sun", page 4, August 16, 1902: "Miller- The funeral of John A Miller will be held this afternoon at 2 o'clock from the residence, 208 East Grand Avenue. Burial at Ferncliff."
Your query and the newpaper's articles did not mention his wife's name. Ferncliff Cemetery is probably Clark County's largest. They're in the business yellow pages and can be reached by phone.
Ohio birth and death records from 1867 to August 1908 are kept at the county probate office and are $6. The website for the Clark County Probate office is: http://www.probate.clarkcountyohio.gov/generes.htmhttp://www.probate.clarkcountyohio.gov/generes.htm Birth and death records after 1908 are kept at the Clark County Combined Health District and that info is also given on the above mentioned website.