Andrew Park McCreath married Mary McMillan on 15 June 1857 at Greenock.

At the time of his marriage (age 29) Andrew was a lowly seaman;  later he is described as a Master Mariner or a Shipmaster. He died age 52. Cause of death – drowning near ship in West Harbour Greenock. The death certificate records his occupation as Ship Watchman.

Their children were:

Gilbert McCreath born 20 December 1861

Daniel McCreath born 9 September 1864

John McCreath born 1867

Jeanie Turner McCreath born 1878