Here is the Cook County, Illinois death certificate for my great grandfather, Fred Owen Emery Daniels. He was only 49 when he passed away of a heart attack on October 22, 1937 in Chicago.
Fred was buried at the Evergreen Cemetery in Fort Atkinson, Wisconsin.
Fred's wife, Mabel provided the personal information found on the death certificate. Mabel apparently did not know the correct name of her father-in-law or where he was born. The name looks like Willis or Wilkes Daniels though Wilson Daniels was Fred's step-father. The the place of birth was Iowa, which was correct as he was born in Washington County, Iowa.
His father was Fred J Emery, born in Galva, Illinois. His mother was Abigail Williams, born in Iowa, though I do not know the name of the city.
Fred Owen Emery changed his name to Fred Emery Daniels sometime prior to his marriage in 1910, but as far as I know, his father never changed his last name from Emery to Daniels.