Rick: I dont know if this is the same Emma M. Weir that you seek, but the book, Weir/Wear: From Here to There and to the White House lists some info about one. Page 189: The children of John B. and Margaretta were Ellen Jane, born about 1833 Rockbridge Co. , Susan Rebecca born about 1838, Clara E, Mary Amelia, born about 1837, Emma M., and Alexander H. born 29 Jan. 1844. Notice that birthdates are missing for some including Emma. There is more info about some of the siblings - names of spouses, etc. and about the will of John B. If you think this might be the person you seek, please let me know and I will send more info. Larry W in Texas