Re: Daniel Edwards b 1839 in NY d aft 1919 in Lansing, MI
Not sure if any of this helps, but have you already tried calling the Mt. Hope Cemetery office to see if Dan is buried there in a different location; have you ruled out his being buried with the previous wife?Looks like his daughters lived in Wayne Co, so you might check both Wayne and Ingham Counties.Did he have Civil War service?
Also, for what it's worth, I think the Burial info for Angeline is a little off; her death record shows she died 6 June 1911:
Angeline M Edwards d 6 June 1911; 3 Grand Ave, 6th ward, Lansing,Ingham Co MI
female, white, marriedb 12 Apr 1841 age 70y 1m 25d
b OH; father Salmon Lansing b NY; mother: Adaliza Pennhollem b CT; informant:Dan Edwards of Lansing; bd Mt Hope Cemetery
Not sure I read her mother's maiden name accurately, but you can check an image of the actual record at SeekingMichigan.
I am not related, but wish you the best of luck