1856 – 1930
Bibliografía (7 obras)
The Bible in iron
1941
The origin of log houses in the United States
1924
Guide book to the tiled pavement in the capitol of Pennsylvania
1909
The decorated stove plates of the Pennsylvania Germans
1899
Antiquity of man in the Delaware valley
1897
Cave exploration in the eastern United States
1896
Chipped stone implements in the Columbian Historical Exposition at Madrid
1895