Orra White Hitchcock ExhibitRobert L. HerbertAllen Press Online Publishing2010DOI 10.3119/0035-4902-112.952.451
Orra Eugene Monnette, 1873-1936University of California PressUniversity of California Press1936DOI 10.2307/25160644
New Jersey Historyby Orra E. MonnetteReview by: Clara M. RowellThe Virginia Magazine of History and Biography1933DOI 10.2307/4244554
Hyrìe–Orra–Thuria–Urbs–Uria–Varia–Oira–OriaMark GlanvilleInforma UK (Taylor & Francis)2016DOI 10.1080/0449010x.2016.1270522
Orra Ervin Underhill, Ph.D. April 21, 1898–June 10, 1943W. G. WhitmanJohn Wiley and Sons1943DOI 10.1002/sce.3730270412
The Origins and Development of Elementary-School Scienceby Orra E. UnderhillReview by: Oliver Schule LoudGuilford Publishing Inc1942DOI 10.2307/40399686
Southern Sketches from Virginia, 1881-1901by Orra Langhorne; Charles E. WynesReview by: Elizabeth Cometti1965DOI 10.2307/23517818
Southern Sketches from Virginia, 1881-1901by Orra Langhorne; Charles E. WynesReview by: Mary Louise Fagg1966DOI 10.2307/30147241
First Settlers of Piscataway and Woodbridge, Olde East New Jersey. Part Seven and Indexby Orra E. MonnetteThe Virginia Magazine of History and BiographyThe Virginia Magazine of History and Biography1935DOI 10.2307/4244684
Underhill, Orra E. The Origins and Development of Elementary-School Science. Chicago:Scott, Foresman and Company, 1941. 347 p. $2.50John Wiley and SonsJohn Wiley and Sons1942DOI 10.1002/sce.3730260514
First Settlers of Ye Plantation of Piscataway and Woodbridge, Olde East New Jersey, 1664–1714. Part VIby Orra Eugene MonnetteReview by: A. C. FlickJSTOR1934DOI 10.2307/23134646
