I am searching for any information on the family of Eliza Jane Gallagher and her sister Martha Ann from Letterkenney, Donegal Co., Ireland.

Eliza Jane was born Jan 19, 1833 in Letterkenney, Donegal Co., Ireland. She traveled to the US to Hanover, Jo Daviss Co., IL and married Seth Craig Sept 1857. Seth and Eliza had six children in Jo Daviss
Co. and in Iowa:

William James Craig (Jan 10, 1861 - Mar 21, 1950)
Martha Ann Craig (Jan 18, 1863 - Aug 8, 1954)
Mary Jane Craig (Jan 18, 1863 - Mar 2, 1956)
Lizzie G. "Eliza" Craig (Aug 22, 1869 - Nov 7, 1957)
Seth Dugry "D" Craig (Jun 28, 1871 - Jun 22, 1941)
Matilda Ellen "Tillie" Craig (Oct 13, 1873 - Jul 9, 1958)

Martha Ann was born in Letterkenney, Donegal Co., Ireland. She also traveled to the US to Hanover and she married Seth's brother Alexander in Feb 1854. Alexander and Martha had two children:

William Alexander Craig (Apr 9, 1866 - May 8, 1958)
Emma Craig (1863 - )

Seth and Alexander are two of the sons of William Craig and Mary Wilson of Donegal Co., Ireland. Any information about this family would be appreciated!

Thank you!
Alicia