Source Information

Ancestry.com. Journal of Samuel Maclay [database on-line]. Provo, UT: Ancestry.com Operations Inc, 2004.
Original data: Maclay, Samuel,. Journal of Samuel Maclay : while surveying the west branch of the Susquehanna, the Sinnemahoning and the Allegheny Rivers, in 1790.. unknown: J.F. Meginness, 1887.