I noticed there are two different spellings of Dalmonego on your matchbooks...

Find a grave found Ola Day Dalmonego...

https://www.findagrave.com/memorial/42236052/ola-dalmonego

If you check the 1950 phone book for Elko, Carlin, Wells, Wendover...you'll find the Trail 40 Cafe listed in the yellow pages, in the Cafe category

https://chipguide.themogh.org/cg_pb_view.php?r=29

I didn't read the whole thing...but Ola Day is mentioned in this Nevada supreme court case...

https://hallapproved.com/nv/cases/supreme/1949/3568482/