I do not have the death information for Isaac Peter Coldiron, or any information about where he is buried.
Peter's wife Mary Elizabeth Speaks died 30 Dec 1928 in Dayton, Montgomery Co., OH.In my notes for Elizabeth, I have noted that I have seen her Death Certificate.Perhaps I have a copy of it but I can't locate it right now.I'll keep looking.
I just checked the OH Death Records on Ancestry.com.Elizabeth's death record is there, but the information is limited.It has her name as Mary E. Coldiron, died 30 Dec 1928 in Montgomery Co., OH.The volume/cert number is hard to read (blurred) but it looks like 9643/77344.
My notes say her Death Certificate is the source for her birth and death dates.She died of Influenza Pneumonia at Miami Valley Hospital.The certificate says she was buried in Dennon Cemetery, but did not give a location for the cemetery.I know there is a Dennon Cemetery in Lawrence Co., OH.
Census Records: 1900 – They are in Jefferson Twp, Ashe Co., NC 1910 – They are in Elizabeth Twp on Johns Creek Rd., Lawrence Co., OH 1920 – They are in Walnut Twp, Gallia Co., OH
I have not found Peter or Elizabeth in the 1930 census.
If you discover additional details about the death and/or burial of Peter and Elizabeth, I would very much like the information.