United States. Census Office. 7th Census, 1850. Seventh United States census, 1850. New York State Library.
Dyfyniad Arddull ChicagoUnited States. Census Office. 7th Census, 1850. Seventh United States Census, 1850. [Albany, N.Y.]: New York State Library.
Dyfyniad MLAUnited States. Census Office. 7th Census, 1850. Seventh United States Census, 1850. New York State Library.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.