OBITUARY INFORMATION FROM FIND-A-GRAVE WEBSITE:

John R Mueller
Birth          11 Aug 1954
Death          10 Sep 1973 (aged 19)
Burial         Calvary Cemetery, Portage, Porter County, Indiana, USA
Plot           E-13
Memorial ID    182234963 

This information and the picture below were obtained from: https://www.findagrave.com/memorial/182234963/john-r-mueller.

INFORMATION FROM ANCESTRY.COM:

This information was obtained from: https://www.ancestry.com/family-tree/person/tree/25200364/person/12550418094/story.

OBITUARY ARTICLE FROM TERRE HAUTE (IN) TRIBUNE, SEPTEMBER 12, 1973:

This article was obtained via Newspapers.com, at: https://www.newspapers.com/article/the-terre-haute-tribune/153730475/.