The name hovered around position #770 on the rankings on a regular basis (which means very few early twentieth century baby girls were named Roselyn). Names like Rose, Rosemary, Rosa, Rosie, and Rosalie had her beat back then. Roselyn ultimately faded into oblivion in 1954, when she was eliminated off the Top 1000 list entirely. Now that you know more about the history of Roselyn, you can make an informed decision about whether or not it is a good name for your daughter. Only time will tell if she grows up to be a rose among thorns or just another leaf on the tree.