Is there anyone with more information on Michael Harper from before he immigrated to the USA?

Wanted Information:
Who was his Father?
Who was his Mother?
Did he have siblings?
When did he come to the US?
How old was he when he came to the US?
Where did he leave from to come to the US?
What was the name of the ship that brought him to the US?
Where did he land in the US?

Known information:
-He lived from 15 October 1774-20 November 1849 /or January 1850
-He was born in Belfast, Antrim, Northern Ireland
-He died in Farmington, Fulton, Illinois, USA at the age of 75
-He was Buried at Oak Ridge Cemetery, Farmington, Fulton, Illinois, USA
-His wife was Nancy Campbell
-He was Captain in Path Valley Regiment, Concord Light Infantry
-Company: Major Mcclelland's Detachment, Pennsylvania