Else is also Finnish and Estonian, used as a short form of Elisabet (Finnish) and Eliisabet (Estonian). The name day for Else is Finland is October 15. The name day for Else in Estonia is November 19.
Else Dahl is the name of one of Roald Dahl's sisters. The others were Astri (died of appendicitis at the age of seven), Alfhild, and Asta (born shortly after Astri's death).
I think this is a lovely name, as long as it's not pronounced ELS. But since it isn't, I like it. I would use this for my child if it was short for Elisabeth.