Mother's sister is the option I'm leaning towards...
Have you guys decided whether the Reys were nobility or not before the war? This could affect my story as to why Flora's mother married a poor boat-maker...I mean, if Theodosia, Sr. and Flora's mother (name to come) come from a well-to-do family, then Flora's mother might have married for love, but if they were peasants of any sort and Theodosia, Sr. married up...? Just wondering what you guys were thinking...