aaah i see now, i thought because his name was on the listing it meant he lived there too! The listings here are so different to the U.S listings.
Here is the last one i can find for Luther :

Name: Luther H Decker
Residence Year: 1903
Street address: 709 Schnell pi
Residence Place: Scranton, Pennsylvania, USA
Occupation: Brakeman
Publication Title: Scranton, Pennsylvania, City Directory, 1903

I'n now thinking maybe he did die in PA and his widow Mary lived with her mother Martha at 21 Grant St.
I didn't know what the abbreviations were on the listings either.