Margaret Doherty - Born circa 1827-1839 Donegal - immigrated to Philadelphia, Pennsylvania during the famine

Hi!  It's been a while since I have put a message out here, so I hope someone can help me since this site has been useful.   My 3rd Great Grandmother was Margaret Mclaughlin who arrived in Philadelphia, Pennsylvania around the 1840's-1850's.  I believe she was born anywhere between the late 1820's and 1839.  I haven't found a lot of records for her either in the U.S. or Ireland, because of the common first name and surname, but I know she married John Mclaughlin and their children were James (1858), John A (1860), Harry David (1863), my 2nd great grandmother Margaret (1865), Jennie (1867), Mary Ellen (1869), and William (1873).  From some matches I have in GEDmatch FB group for Doherty/Dougherty I believe she is from Clonmany, but I am not sure.  I know it's not much but if anyone has any information that may point me in the right direction I would appreciate it.  Thank you!

Jay

Here is a link to my 2nd great grandmother's death certificate.  She was married twice so her full name would have been Margaret McLaughlin Kessler McGraw.  This shows who her parents were and what country they were from.

Ancestry.com - Pennsylvania, U.S., Death Certificates, 1906-1970