Obstructions of the Hudson River during the Revolution

Ancestry.com. Obstructions of the Hudson River during the Revolution [webbaserad databas]. Provo, UT: Ancestry.com Operations Inc, 2004.Originaldata: Hornor, W. M. Obstructions of the Hudson River during the Revolution. Metuchen, N.J.: Sixty copies printed for C.F. Heartman, 1927.