Although I don't have the two sisters you mentioned, I do know that there is a strong tradition here in Texas of Damrons and their relatives by marriage, the Winnifords, having girls named Martha who were nicknamed Mattie.
There is a Martha "Mattie" Damron who was the daughter of Capt. Milton Wesley Damron of Bell Co, TX, but I don't believe she had a sister Lorene.
Could you give me some idea of where these sisters and/or their descendants ended up? That could help a great deal in placing them. Also, precise or approximate birthyears, etc.