Hi...not related.
On
http://omahamarriages.wordpress.comfound the following:
Hartman, Joseph B., 23 md Muriel F. Viel, 18 in May 1915
cert. #37022
Instructions for ordering are on site.
On
http://omahaobits.wordpress.comfound following listing:
Hartman Muriel F. (w/Joseph B); 18 Feb 1984 Omaha World Herald p 36, [buried] at Lindtrom, Chisago, MN
instructions for ordering are on site