/ / / / / / 10002838
Sayenga, Donald.
by Donald Sayenga.
York, PA : American Canal and Transportation Center,
c1983.
59 p. : ill. ;
Bibliography: p. 58.
Ellet, Charles,1810-1862.
Roebling, John Augustus,1806-1869.
Engineers. United States. Biography.
TAB 71