I am sorry that I don't have any information on the Weir name. The only connection I have to the Weir name is that John Gemmel or Gemmill (Gemmill being the name that I am researching) married an Ann Weir, April 2, 1799. John and Ann immigrated with their 6 daughters and 2 of their 3 sons to Canada in 1821 from New Cumnock, Ayrshire, Scotland.
I am sorry I am not of further assistance on this matter. If you feel that you have a connection to this Ann Weir I would be interested in hearing from you. Thank you! Sally