Locating vital records in the 1800's can be hit or miss, but the United States used to have a mortality census, so I was able to locate the 4th child (or 5th as I do not know who was born first) born to Ole and Mari Finnestad, their daughter, Iverdine (twin of Bertha).
This record lists Iverdine's name as "Dinah Travlin". Dina or Dena is short for Iverdine and this is the first I've seen of the use "Dinah". "Travlin" is spelled incorrectly; her married name was Travland.
Iverdine was born December 2, 1850 in Norway and died November 3, 1879 in Milan township, DeKalb County, Illinois. She succumbed to "the consumption" which we know today as tuberculosis.