ALLINGHAM in Pittsburg

Family Tree Maker'sWorld Family Tree CD #7, Tree #43 show that Robert ALLINGHAMmarried Jennie Leith McGRANDLE from Portglenone, Antrim, Ireland in Pittsburg PA on 7 Jan 1909. I am descended from another McGrandle line originating in Portglenone Parish and would like to establish contact with the submitter of Tree #43 > probably an ALLINGHAM descendant.Does anyone know who this might be and how to reach him/her? Thank you for any help you can provide!
Bob Crowetwocrowes@worldnet.att.net