Hi Amanda;
I am a great-grandson of Andrew Graham- Thomas's third son. I grew up in Lake County and I have done some research (and a lot of collaboration) with other family members researching this family. One of them brought your post to my attention.
Here are some things we have learned about Thomas:
-He had another wife prior to Catherine Loftus; her name was Mary, (we do not know her last name). Mary was the mother of William Graham, the oldest son. The children of Thomas and Catherine Loftus were Thomas, Andrew, Owen, James, and Mary. William was born in New York, all the others in Illinois. We do not know if Thomas married Mary in Ireland or in the US, and we do not know when he emigrated.
-Family lore is that Thomas was from what is now Northern Ireland.
-Thomas worked on the Erie Canal in New York State, making enough money to buy land in Lake County from the Federal Government in 1840.
-Either Thomas or his son Thomas was an Elector in Lake County for Abraham Lincoln in the 1864 Presidential election.
-Thomas's children held a Graham family reunion in 1911 in Lake County.
-The farm that Thomas and Catherine owned comprised 160 acres and lay on a plot of land that became south half of the Lakehurst Mall and is now called Fountain Square. This is in the southeast corner of Warren Township in the city of Waukegan.
-The farm was left to third son Andrew and his wife Elizabeth Doyle.
- A common trait of descendants of Thomas Graham is the tendency turn gray in early adulthood; usually sometime between the ages of 18 and 25. This affects about one in four descendants.
- The graves of Thomas and Catherine as well as son Andrew and daughter-in-law Elizabeth, are in St. Mary's Cemetary on Sheridan Road in Waukegan.