What are the full names of Zekle and Huldy in James Russell Lowell The Courtin?

After careful analysis of the text along with biblical references it can easily be surmised that zekle and huldy represent Abraham and Sarah from the Old Testament. Lowell uses a misnomer to create a deeper meaning and their love is new and fresh, but still rooted in the traditional social and religious moors of the fireside poets' time.