Dennis McCauley married Mary Gallagher in Philadelpahia PA on January 31, 1837, when they were in their 40's they movied to a large farm in Kent CO Maryland, town of Galena

They are burried in St. Dennis Cemetery, Galena MD
Her family worked on the farm (Gallaghers)
According to the censes information
The Gallaghers were from Letterkenny Co Donagal Ireland