Could you give me more information on both of these marriages (Letty and Elizabeth)?

I have an unknown Betsy as the mother of a Mack Doyle Daniel in Brunswick County in 1860. I am wondering if Elizabeth is her, possible as a second marriage for this Joseph Daniel (Mack's father, who was ~52 when Mack was born).

I don't think Letty is normally a nickname related to Betsy, but I guess it can't hurt to explore.

Thanks.